CN221195401U - Compressor oil content structure and screw compressor - Google Patents

Abstract

The present disclosure relates to a compressor oil content structure and a screw compressor. The compressor oil structure includes: an oil content barrel body (10) having a separation chamber (S); an exhaust pipe (20) extending into the separation chamber (S) and for discharging an oil-gas mixture into the separation chamber (S); and a buffer structure (30) disposed within the separation chamber (S) and having at least one buffer chamber (31), wherein the at least one buffer chamber (31) is in communication with the separation chamber (S).

Description

Compressor oil content structure and screw compressor

Technical Field

The present disclosure relates to the field of compressors, and more particularly, to a compressor oil component structure and a screw compressor.

Background

The oil injection screw compressor uses lubricating oil to lubricate and cool the support bearing in the running process, and the lubricating oil plays a certain sealing role on a leakage channel between the male rotor and the female rotor. Lubricating oil can be mutually dissolved with a compressed working medium, so that an oil separation structure is generally arranged to initially separate the mutually dissolved lubricating oil and working medium in the compressor before the compressed working medium is discharged out of the compressor, so that the self oil circuit circulation reliability of the compressor is ensured.

Disclosure of utility model

The inventor finds that the compression cavity is periodically communicated with the suction and exhaust cavity in the operation process of the screw compressor in the related technology, so that unstable gas flows are caused, the air flow pulsation of the suction and exhaust cavity is caused, the vibration noise of the suction and exhaust cavity is caused, and the problems of over-compression or under-compression of the high exhaust pressure and the final exhaust pressure are considered, so that the air flow pulsation in the exhaust cavity can induce more serious noise problems.

In view of the above, embodiments of the present disclosure provide a compressor oil component structure and a screw compressor, which can improve the exhaust noise problem.

In one aspect of the present disclosure, there is provided a compressor oil separating structure comprising:

an oil content barrel having a separation chamber;

The exhaust pipe extends into the separation cavity and is used for discharging an oil-gas mixture into the separation cavity;

A buffer structure arranged in the separation cavity and provided with at least one buffer cavity,

Wherein the at least one buffer chamber is in communication with the separation chamber.

In some embodiments, the resonance frequency of the at least one buffer chamber is configured to be the same as a partial vibration frequency of the sound wave of the oil-gas mixture discharged by the exhaust pipe into the separation chamber.

In some embodiments, the at least one buffer chamber comprises a plurality of buffer chambers, each in communication with the separation chamber.

In some embodiments, at least two volumes of the plurality of buffer chambers are different.

In some embodiments, the buffer structure comprises:

The partition plate is arranged on the inner wall of the separation cavity and separates a plurality of grids which are not communicated with each other on the inner wall of the separation cavity; and

The orifice plate is arranged on the partition plate, and encloses the buffer chambers together with the grids and the inner walls of the separation chambers, and the orifice plate is provided with through holes for communicating the separation chambers with the buffer chambers.

In some embodiments, the orifice plate has a plurality of sets of through holes, each set of through holes including at least one through hole arranged in a surface of the orifice plate, the plurality of through holes respectively corresponding to the plurality of buffer chambers, each buffer chamber communicating with the separation chamber through a corresponding set of through holes.

In some embodiments, at least two buffer chambers of different volumes respectively correspond to different numbers of through holes and/or different cross-sectional areas of the through holes contained in the through hole groups.

In some embodiments, the plurality of cells comprises at least two circles of cells arranged radially, each circle of cells comprising at least one cell arranged circumferentially.

In some embodiments, the diaphragm member comprises a plurality of concentric annular diaphragms and a plurality of radial diaphragms cross-connected to the plurality of concentric annular diaphragms, the plurality of concentric annular diaphragms and the plurality of radial diaphragms respectively enclosing the radially arranged at least two turns of mesh, the volume of each of the turns of mesh decreasing from outside to inside in the radial direction of the plurality of concentric annular diaphragms.

In some embodiments, the orifice plate is removably disposed on the divider member.

In some embodiments, the divider member is removably disposed on or formed on an inner wall of the separation chamber.

In some embodiments, the oil content cartridge has a cartridge body and a cartridge bottom removably disposed on the cartridge body, the buffer structure being disposed on an inner wall of the cartridge bottom.

In some embodiments, the compressor oil structure further comprises:

The oil filter screen is arranged in the barrel body and surrounds the separation cavity with the inner wall of the barrel bottom.

In some embodiments, the exhaust duct includes a first exhaust duct extending into the separation chamber and having a first exhaust end, and a second exhaust duct extending into the separation chamber and having a second exhaust end.

In some embodiments, the port sidewall of at least one of the first and second exhaust ends has a plurality of exhaust holes arranged circumferentially.

In some embodiments, the compressor oil structure further comprises:

the oil filter screen is arranged in the oil content barrel body and surrounds the separation cavity with part of the inner wall of the oil content barrel body;

The first exhaust pipe and the second exhaust pipe respectively penetrate through the oil filter screen, and the first exhaust end and the second exhaust end incline towards the axis of the oil filter screen.

In one aspect of the present disclosure, there is provided a screw compressor comprising: the compressor oil separating structure.

Therefore, according to the embodiment of the disclosure, the buffer structure is arranged in the separation cavity of the oil content barrel body, and the buffer structure is provided with at least one buffer cavity communicated with the separation cavity, so that a part of high-pressure pulsation oil-gas mixture fluid discharged into the separation cavity from the exhaust pipe can enter the buffer cavity, and a part, consistent with the resonance frequency of the buffer cavity, of sound waves brought by the oil-gas mixture can be converted into heat energy by the buffer cavity, so that the compressor oil content structure can realize oil content effect and reduce exhaust noise. And, buffer structure can also promote the oil-gas separation effect of oil-gas mixture through the buffer cavity, improves separation efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a partial cross-sectional view of a mounting structure of some embodiments of a compressor oil structure according to the present disclosure;

FIG. 2 is a schematic illustration of a separation chamber bleed pipe and buffer structure in some embodiments of a compressor oil structure according to the present disclosure;

FIG. 3 is a schematic installation view of an oil tank with a buffer structure installed in some embodiments of a compressor oil structure according to the present disclosure;

fig. 4 is an exploded view of the embodiment shown in fig. 3.

It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In this disclosure, when a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device. When it is described that a particular device is connected to other devices, the particular device may be directly connected to the other devices without intervening devices, or may be directly connected to the other devices without intervening devices.

All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one 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 some related technologies, before the compressed working medium is discharged, an oil separation structure is arranged to primarily separate the mutually soluble lubricating oil and working medium in the compressor, so as to ensure the self oil circuit circulation reliability of the compressor. However, in the operation process, the compression cavity is periodically communicated with the suction and exhaust cavity, so that unstable gas flow is caused, airflow pulsation of the suction and exhaust cavity is caused, vibration noise of the suction and exhaust cavity is caused, and in consideration of the problems of over-compression or under-compression of high exhaust pressure and final exhaust pressure, the airflow pulsation in the exhaust cavity can induce more serious noise problems.

In view of the above, embodiments of the present disclosure provide a compressor oil component structure and a screw compressor, which can improve the exhaust noise problem.

Fig. 1 is a partial cross-sectional view of a mounting structure of some embodiments of compressor oil structures according to the present disclosure. FIG. 2 is a schematic illustration of a separation chamber bleed pipe and buffer structure in some embodiments of a compressor oil structure according to the present disclosure.

Referring to fig. 1 and 2, an embodiment of the present disclosure provides a compressor oil structure including: an oil content tank 10, an exhaust pipe 20, and a buffer structure 30. The oil tank 10 has a separation chamber S. An exhaust pipe 20 extends into the separation chamber S and is arranged to discharge an oil-gas mixture into the separation chamber S. The buffer structure 30 is disposed within the separation chamber S and has at least one buffer chamber 31. The at least one buffer chamber 31 communicates with the separation chamber S.

In the present embodiment, by providing the buffer structure 30 in the separation chamber S of the oil content tank 10, and the buffer structure 30 having at least one buffer chamber 31 communicating with the separation chamber S, a part of the high-pressure pulsating oil-gas mixture fluid discharged from the exhaust pipe 20 into the separation chamber S can enter the buffer chamber 31, and a part of the sound wave brought by the oil-gas mixture, which coincides with the resonance frequency of the buffer chamber 31, can be converted into heat energy by the buffer chamber 31, thereby enabling the compressor oil content structure to reduce exhaust noise while achieving oil content effect. And, the buffer structure 30 can also promote the oil-gas separation effect of the oil-gas mixture through the buffer chamber 31, improving the separation efficiency.

The oil content barrel 10 may be connected to the compressor body in a screw compressor, and an exhaust joint may be provided on the oil content barrel 10 so as to receive the oil-gas mixture having a higher pressure after the compression of the compressor body. The exhaust pipe 20 may be connected to an exhaust joint, from which the oil-gas mixture is discharged into the separation chamber S. The oil-gas mixture realizes oil-gas separation in the separation cavity S, wherein the oil-gas mixture can comprise a mixture of lubricating oil and gaseous refrigerant, and the separated lubricating oil can return to the compressor body to realize lubrication.

The buffer structure 30 may be disposed in the separation chamber S in various forms, for example, the buffer structure 30 is fixed to the inner wall surface of the separation chamber S, or the buffer structure 30 is erected on the inner wall of the separation chamber S by a bracket, or the buffer structure 30 is integrally formed on the inner wall of the separation chamber S, etc.

The buffer chamber 31 has a certain volume of space and is in communication with the separation chamber S, so that the gas-oil mixture can enter the buffer chamber 31 from the separation chamber S, or can enter the separation chamber S from the buffer chamber 31. The buffer structure 30 may include a single buffer chamber 31 or may include a plurality of buffer chambers 31. The buffer chamber 31 may be provided in various shapes and sizes as needed.

In some embodiments, the resonance frequency of the at least one buffer chamber 31 is configured to be the same as the partial vibration frequency of the sound wave of the oil-gas mixture discharged by the exhaust pipe 20 into the separation chamber S.

The damping chamber 31, of a specific structure and size, achieves a resonance frequency identical to the partial vibration frequency of the sound waves of the mixture of gases discharged by the exhaust pipe 20 into the separation chamber S, which can be subjected to a targeted noise reduction effect, converting acoustic energy into thermal energy.

For embodiments in which the buffer structure 30 has a plurality of buffer chambers 31, the plurality of buffer chambers 31 may each be in communication with the separation chamber S. The buffer structure 30 adopts a plurality of buffer chambers 31 to realize more resonance frequencies, so that more frequency parts of sound waves brought by the oil-gas mixture can be converted into heat energy by the plurality of buffer chambers 31, and exhaust noise is further reduced. The designer can confirm some main sonic frequencies according to the collection to the exhaust noise to set up a plurality of buffer chambers that can realize corresponding resonant frequency pertinently, thereby make exhaust noise can be more restrained, improve the noise reduction effect. In addition, the plurality of buffer chambers 31 communicating with the separation chamber S can also realize auxiliary oil-gas separation of the received oil-gas mixture, thereby improving the oil-gas separation efficiency of the compressor oil structure.

In some embodiments, at least two volumes of the plurality of buffer chambers 31 are different. This may include embodiments in which each buffer chamber 31 has a different volume than the other buffer chambers 31, or embodiments in which a portion of the buffer chambers 31 have the same volume but have a different volume than the other buffer chambers 31. Considering that the volume of the buffer chamber 31 is related to the resonance frequency achieved by the buffer chamber 31, at least two volumes of the plurality of buffer chambers 31 are made different, and a plurality of resonance frequencies can be achieved, so that the plurality of chambers 31 can convert the part of the same vibration frequency in the sound wave of the oil-gas mixture discharged from the exhaust pipe 20 into the separation chamber S into heat energy, and the noise reduction effect is improved.

Fig. 3 is a schematic installation view of an oil tank with a buffer structure installed in some embodiments of a compressor oil structure according to the present disclosure. Fig. 4 is an exploded view of the embodiment shown in fig. 3.

Referring to fig. 3 and 4, in some embodiments, the buffer structure 30 includes: a divider member 32 and an orifice plate 33. The partition member 32 is provided on the inner wall of the separation chamber S, and partitions a plurality of grids 321 that are not communicated with each other at the inner wall of the separation chamber S. The orifice plate 33 is disposed on the partition member 32 to enclose the plurality of buffer chambers 31 together with the plurality of grids 321 and the inner walls of the separation chamber S, and the orifice plate 33 has a through hole 331 communicating the separation chamber S with each buffer chamber 31.

When the oil-gas mixture reaches the orifice plate 33, the orifice plate 33 can break up the oil-gas mixture discharged from the exhaust pipe 20, so that the oil efficiency is improved. The divider member 32 may include a plurality of intersecting dividers, such as a flat-plate-shaped, circular-arc-shaped, cylindrical-shaped, etc., and the mesh 321 may be enclosed by the intersecting dividers. For example, in fig. 4, three concentric cylindrical partitions are intersected with a plurality of flat-plate partitions radiating outward from the center of a circle to obtain a plurality of grids 321, and the grids are not communicated with each other under the isolation of the partitions.

An orifice plate 33 is provided on the partition member 32 to enclose the plurality of buffer chambers 31 together with the plurality of mesh 321 and the inner wall of the separation chamber S. At this time, the opposite surfaces of the buffer chamber are the inner side surface of the orifice plate 33 and the inner wall surface of the separation chamber S, respectively, and the mesh 321 encloses the buffer chamber 31 together with the inner side surface of the orifice plate 33 (the side surface adjacent to the partition member 32) and the inner wall surface of the separation chamber S.

The orifice plate 33 has a through hole 331 for communicating the separation chamber S with each buffer chamber 31. The oil-gas mixture reaching the outer side surface of the orifice plate 33 (the side surface away from the partition plate 32) is, in addition to being partially dispersed by the orifice plate 33, partially entered from the through holes 331 into the buffer chambers 31, and sound waves entered together with the oil-gas mixture resonate with the gas in the chambers in the respective buffer chambers, and the sound energy is converted into heat energy and absorbed, thereby achieving the effect of reducing the pulsation noise of the exhaust gas flow, and the exhaust gas after noise reduction flows out again through the through holes 331 in the orifice plate 33 and enters the separation chamber S.

Referring to fig. 4, in some embodiments, the orifice plate 33 has a plurality of through-hole groups 331G, each through-hole group 331G including at least one through-hole 331 arranged on a surface of the orifice plate 33, the plurality of through-hole groups 331G respectively corresponding to the plurality of buffer chambers 31, and each buffer chamber 31 communicates with the separation chamber S through the corresponding through-hole group 331G.

In fig. 4, the through hole groups 331G are in one-to-one correspondence with the buffer chambers 31, that is, each buffer chamber 31 corresponds to one through hole group 331G. Each of the through-hole groups 331 may include a plurality of through-holes 331 arranged on the surface of the orifice plate 33. In other embodiments, some or all of the via groups 331 may include only one via 331.

The noise reduction and the oil-gas separation can be achieved by flowing the oil-gas mixture between the corresponding buffer chamber 31 and the separation chamber S through the through-hole group 331G. And the designer can set the number, the size, the distribution mode and the like of the through holes in the through hole group 331G according to the needs so as to meet the needs of different application scenes.

Referring to fig. 4, in some embodiments, the through hole groups 331G respectively corresponding to at least two buffer chambers 31 having different volumes include different numbers of through holes and/or different cross-sectional areas of through holes. The buffer chambers 31 with different volumes are matched, and the through hole groups 331G with different through hole numbers and/or through hole sectional areas are adopted, so that the required resonance frequency can be met as much as possible, and the noise reduction effect can be further improved.

The cross-sectional areas of the through holes 331 included in each of the through hole groups 331G may be the same, and the through hole groups 331G having different numbers of through holes may be provided according to the position and size of the buffer chamber 31. For example, in fig. 4, the number of through holes in the through hole group 331G closer to the center is smaller, and the number of through holes in the through hole group 331G farther from the center is larger. The number of through holes 331 included in each of the through hole groups 331G may be the same, but different cross-sectional areas of the through holes may be used.

In some embodiments, the plurality of cells 321 may include at least two radially arranged turns of cells 321, each turn of cells 321 including at least one cell 321 circumferentially arranged. According to the diaphragm member 32 described above, the division of the mesh 321 is performed by the diaphragm in the radial direction and the circumferential direction. For example, in fig. 4, the plurality of cells 321 includes three cells 321 arranged radially, wherein the cell 321 closest to the center includes one cell 321, and two cells 321 away from the center each include 8 cells 321.

Referring to fig. 4, in some embodiments, the diaphragm member 32 includes a plurality of concentric annular diaphragms 32a and a plurality of radial diaphragms 32b intersecting the plurality of concentric annular diaphragms 32a, the plurality of concentric annular diaphragms 32a and the plurality of radial diaphragms 32b each enclose at least two rings of the mesh 321 arranged in the radial direction, and the volume of each mesh 321 in each ring of mesh 321 gradually decreases from the outside to the inside in the radial direction of the plurality of concentric annular diaphragms. The plurality of concentric annular baffles 32a and the plurality of radial baffles 32b may be integrally formed and may also be integrally formed with the oil tank 10 or mounted on the oil tank 10.

Through the cross connection of a plurality of concentric annular baffles and a plurality of radial baffles, enclose the structure that the net volume radially reduces from outside to inside gradually, be convenient for the shaping in the structure like this, can promote the noise reduction effect through more resonance frequency moreover. In addition, this structure is also advantageous in improving the oil-gas separation effect.

For the orifice plate 33, the through holes 331 thereof may be provided according to the distribution of the mesh 321 to satisfy the communication requirement of the buffer chamber 31 and the separation chamber S. The grids are distributed uniformly, so that a flow equalization effect can be realized, and the separation effect of the oil-gas mixture is enhanced.

For the oil separating structure of the compressor, the orifice plate 33 can be replaced and maintained according to the requirement, and can also be replaced to adapt to the application environment. Thus, in some embodiments, the orifice plate 33 is removably disposed on the diaphragm member 32. For example, in fig. 3 and 4, the orifice plate 33 is provided with a plurality of first mounting holes 332, and the partition member 32 is correspondingly provided with a plurality of second mounting holes 322. When the orifice plate 33 is positioned on the partition plate 32, the plurality of first mounting holes 332 are aligned one-to-one with the plurality of second mounting holes 322, respectively, and a connector (e.g., a screw) is fixed in the second mounting holes 322 through the first mounting holes 332.

Referring to fig. 1 and 4, in some embodiments, the baffle member 32 is removably disposed on or formed on the inner wall of the separation chamber S. The diaphragm member 32 can be formed with a plurality of mesh 321, and the diaphragm member 32 having a different mesh form may be replaced in order to meet the denoising requirements of the sound waves of different frequencies of the exhaust gas. The grid form herein may include the shape, size, positional relationship, etc. of the grid.

Referring to fig. 1, in some embodiments, the oil content tank 10 has a tank 11 and a tank bottom 12, the tank bottom 12 is detachably provided on the tank 11, and the buffer structure 30 is provided on an inner wall of the tank bottom 12. Compared to some related-art oil tanks, the tank bottom of which is integrally formed with the tank body so as not to be separable, in the present embodiment, the buffer structure 30 is provided on the inner wall of the tank bottom 12, and the tank bottom 12 is detachably provided on the tank body 11, so that the tank bottom of the oil tank 10 can be selectively replaced according to various forms of the tank bottom 12 provided with the buffer structure 30 (e.g., having a plurality of buffer chambers 31 corresponding to different resonance frequencies) for the exhaust noise problem of different frequencies generated in different application scenarios.

Referring to fig. 1, in some embodiments, the compressor oil structure further includes an oil screen 40. The oil filter 40 is disposed in the tub 11 and encloses the separation chamber S with the inner wall of the tub bottom 12.

In this embodiment, after the oil-gas mixture discharged from the exhaust pipe enters the separation chamber, the oil-gas mixture is primarily separated by striking the inner wall of the separation chamber and the surface of the orifice plate 33, a part of the oil-gas mixture can be separated by the oil filter (may also include a flow equalizing plate located between the oil filter and the orifice plate), and the separated gas is discharged out of the compressor, and another part of the separated gas enters each buffer chamber 31 through the orifice plate 33 to realize noise reduction and oil-gas separation, so that the oil-gas separation effect is effectively improved, and the separated lubricating oil flows outwards from the bottom of the oil barrel 10 under the action of gravity.

Referring to fig. 1 and 2, in some embodiments, the exhaust pipe 20 includes a first exhaust pipe 21 and a second exhaust pipe 22, the first exhaust pipe 21 extending into the separation chamber S and having a first exhaust end 211, and the second exhaust pipe 22 extending into the separation chamber S and having a second exhaust end 221.

The number of each of the first exhaust pipe 21 and the second exhaust pipe 22 may be 1 or more. Depending on the structural arrangement and the air flow pressure loss, in some embodiments, the number of each of the first exhaust pipe 21 and the second exhaust pipe 22 is 1, so as to make the structure more compact and have less air flow pressure loss.

The exhaust pipe 20 may be provided in a two-in-one structure in which the exhaust joint of the compressor is split into two paths, i.e., the first exhaust pipe 21 and the second exhaust pipe 22, before extending into the separation chamber S through the exhaust pipe, so that the oil-gas mixture can be discharged from the first exhaust end 211 and the second exhaust end 221 through the first exhaust pipe 21 and the second exhaust pipe 22, respectively, which can enhance the collision of the oil-gas mixture with the pipe wall and enhance the oil-gas separation effect.

Referring to fig. 1, in some embodiments, a plurality of exhaust holes 23 are circumferentially arranged on a port sidewall of at least one of the first exhaust end 211 and the second exhaust end 221. The port side walls of the first exhaust end 211 and the second exhaust end 221 are equivalent to the tail parts of the first exhaust pipe 21 and the second exhaust pipe 22, and the flow equalization of the oil-gas mixture can be further enhanced and the oil-gas separation effect can be improved by arranging a plurality of exhaust holes 23 circumferentially distributed on the port side walls.

For the compressor oil structure embodiment further including the oil filter 40, the oil filter 40 is disposed in the oil tank 10 and encloses the separation chamber S with a part of the inner wall of the oil tank 10. The first exhaust pipe 21 and the second exhaust pipe 22 pass through the oil strainer 40, respectively, and the first exhaust end 211 and the second exhaust end 221 are inclined toward the axis of the oil strainer 40.

The first exhaust end 211 and the second exhaust end 221, which are inclined towards the axis of the oil filter 40, form a certain included angle therebetween, which is beneficial to making the distribution of the two exhaust ends on the section of the oil barrel more uniform and enhancing the utilization of the sectional area, thereby further enhancing the oil efficiency.

The compressor oil component structure can be applied to the screw compressor, and can reduce exhaust noise when the screw compressor operates. Accordingly, in one aspect of the present disclosure, there is provided a screw compressor comprising the compressor oil structure of any one of the embodiments described above.

Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (17)

1. A compressor oil separation structure, comprising:

an oil content barrel body (10) having a separation chamber (S);

An exhaust pipe (20) extending into the separation chamber (S) and for discharging an oil-gas mixture into the separation chamber (S); and

A buffer structure (30) arranged in the separation chamber (S) and having at least one buffer chamber (31),

Wherein the at least one buffer chamber (31) communicates with the separation chamber (S).

2. Compressor oil structure according to claim 1, characterized in that the resonance frequency of the at least one buffer chamber (31) is configured to be the same as the partial vibration frequency of the sound wave of the oil-gas mixture discharged by the discharge pipe (20) into the separation chamber (S).

3. Compressor oil structure according to claim 1, characterized in that said at least one buffer chamber (31) comprises a plurality of buffer chambers (31), said plurality of buffer chambers (31) being each in communication with said separation chamber (S).

4. A compressor oil structure according to claim 3, characterized in that at least two volumes of the plurality of buffer chambers (31) are different.

5. The compressor oil sub-structure according to claim 2, characterized in that the buffer structure (30) comprises:

A partition member (32) which is provided on the inner wall of the separation chamber (S) and which partitions a plurality of grids (321) which are not communicated with each other on the inner wall of the separation chamber (S); and

The orifice plate (33) is arranged on the partition plate (32), and encloses the buffer chambers (31) together with the grids (321) and the inner walls of the separation chambers (S), and the orifice plate (33) is provided with through holes (331) for communicating the separation chambers (S) with the buffer chambers (31).

6. The compressor oil separating structure according to claim 5, wherein the orifice plate (33) has a plurality of through-hole groups (331G), each through-hole group (331G) including at least one through-hole (331) arranged on a surface of the orifice plate (33), the plurality of through-hole groups (331G) respectively corresponding to the plurality of buffer chambers (31), and each buffer chamber (31) communicates with the separation chamber (S) through the corresponding through-hole group (331G).

7. Compressor oil structure according to claim 6, characterized in that the respective corresponding groups of through holes (331G) of at least two buffer chambers (31) of different volumes comprise different numbers of through holes and/or different cross-sectional areas of through holes.

8. The compressor oil distribution structure according to claim 5, wherein the plurality of cells (321) comprises at least two radially arranged turns of cells (321), each turn of cells (321) comprising at least one circumferentially arranged cell (321).

9. The compressor oil separating structure according to claim 8, wherein the diaphragm member (32) includes a plurality of concentric annular diaphragms (32 a) and a plurality of radial diaphragms (32 b) cross-connected with the plurality of concentric annular diaphragms (32 a), the plurality of concentric annular diaphragms (32 a) and the plurality of radial diaphragms (32 b) respectively enclose the radially arranged at least two rings of meshes (321), and the volume of each mesh (321) in each ring of meshes (321) gradually decreases from outside to inside in the radial direction of the plurality of concentric annular diaphragms.

10. Compressor oil sub-structure according to claim 5, characterized in that the orifice plate (33) is detachably arranged on the partition member (32).

11. Compressor oil separating structure according to claim 5, characterized in that the partition member (32) is detachably provided on or formed on the inner wall of the separation chamber (S).

12. Compressor oil structure according to claim 1, characterized in that the oil content tank (10) has a tank body (11) and a tank bottom (12), the tank bottom (12) being detachably arranged on the tank body (11), the buffer structure (30) being arranged on an inner wall of the tank bottom (12).

13. The compressor oil structure of claim 12, further comprising:

The oil filter screen (40) is arranged in the barrel body (11) and surrounds the separation cavity (S) with the inner wall of the barrel bottom (12).

14. Compressor oil structure according to claim 1, characterized in that the exhaust pipe (20) comprises a first exhaust pipe (21) and a second exhaust pipe (22), the first exhaust pipe (21) extending into the separation chamber (S) and having a first exhaust end (211), the second exhaust pipe (22) extending into the separation chamber (S) and having a second exhaust end (221).

15. The compressor oil structure according to claim 14, wherein a port sidewall of at least one of the first and second discharge ends (211, 221) is circumferentially arranged with a plurality of discharge holes (23).

16. The compressor oil structure of claim 14, further comprising:

An oil filter screen (40) which is provided in the oil tank (10) and surrounds the separation chamber (S) with a part of the inner wall of the oil tank (10);

Wherein the first exhaust pipe (21) and the second exhaust pipe (22) respectively pass through the oil filter screen (40), and the first exhaust end (211) and the second exhaust end (221) are inclined towards the axis of the oil filter screen (40).

17. A screw compressor, comprising:

A compressor oil structure as claimed in any one of claims 1 to 16.