CN111794971A

CN111794971A - Liquid storage device and compressor

Info

Publication number: CN111794971A
Application number: CN202010647840.2A
Authority: CN
Inventors: 张大鹏; 吴健; 王珺; 张心爱; 闫鹏举
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-10-20

Abstract

The invention provides a liquid storage device and a compressor, wherein the liquid storage device comprises a shell, a plugging structure and a silencing chamber, a containing cavity is formed in the shell, the bottom of the containing cavity is an oil return area, the bottom of the shell is provided with an oil return port and an air supply port, and the oil return port is communicated with the oil return area; the blocking structure is arranged in the oil return area, and at least one part of the blocking structure is movably arranged so as to avoid or block an oil return port; the silencing chamber is arranged in the accommodating cavity and is provided with a silencing cavity, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the silencing cavity, the through-flow sectional area of the silencing cavity is larger than the area of the air inlet and larger than the area of the air outlet, and the air outlet is communicated with the air supply port. Through the cooperation of block structure and oil return opening, the oil return ability of reservoir has been improved. The flow velocity of the gaseous refrigerants and the collision among the gaseous refrigerants are reduced through the silencing chamber, and the air flow excitation of the refrigerants is reduced, so that the noise and the vibration of the liquid storage device are reduced.

Description

Liquid storage device and compressor

Technical Field

The invention relates to the technical field of compressors, in particular to a liquid storage device and a compressor.

Background

The liquid storage device in the compressor is assembled on the suction hole of the pump body, and when the volume of the suction cavity of the pump body is increased to suck air, the gaseous refrigerant enters the cavity of the liquid storage device and enters the suction cavity after being filtered by the filter screen. When the refrigerant contains lubricating oil and liquid refrigerant, the lubricating oil and the liquid refrigerant are continuously deposited to the bottom of the liquid reservoir due to the cooperation of the straight pipe and the filter screen assembly and the flowing inertia and gravity of the lubricating oil and the liquid refrigerant.

The accumulated liquid refrigerant is vaporized as the condition of the refrigeration cycle changes or absorbs heat from the environment, thereby starting a new refrigeration cycle. However, in the existing liquid storage device, when the lubricating oil returns to the pump body, the oil return is incomplete and untimely, and the lubricating oil is often stored in the bottom of the liquid storage device in a large amount, so that the pump body assembly is lack of oil, and the lubricating state is deteriorated. In addition, when the compressor is in operation, the liquid accumulator can generate larger noise and vibration, and the overall performance of the compressor is reduced.

Disclosure of Invention

The invention provides a liquid storage device and a compressor, which are used for improving the oil return capacity of the liquid storage device, reducing noise and vibration and improving the performance of the compressor.

To achieve the above object, according to one aspect of the present invention, there is provided a reservoir including: the oil return device comprises a shell, wherein an accommodating cavity is formed in the shell, the bottom of the accommodating cavity is an oil return area, the bottom of the shell is provided with an oil return port and an air supply port, and the oil return port is communicated with the oil return area; the plugging structure is arranged in the oil return area, and at least one part of the plugging structure is movably arranged so as to avoid or plug the oil return port; the silencing chamber is provided with a silencing cavity, an air inlet and an air outlet, the air inlet is communicated with the silencing cavity, the flow cross section area of the silencing cavity is larger than the area of the air inlet and larger than the area of the air outlet, and the air outlet is communicated with the air supply port.

Further, the plugging structure comprises a plugging piece which is movably arranged, wherein the plugging piece plugs the oil return opening when the liquid level in the oil return area is lower than a preset height, and the plugging piece avoids the oil return opening when the liquid level in the oil return area reaches the preset height.

Furthermore, the plugging piece floats in the oil return area under the combined action of gravity and buoyancy so as to avoid or plug the oil return opening.

Further, the plugging structure further comprises a support and a connecting rod, wherein the support is arranged on the inner wall of the shell, one end of the connecting rod is hinged to the support, and the other end of the connecting rod is hinged to the plugging piece.

Further, the closure is made of nitrile rubber.

Further, the reservoir further comprises: the first filtering structure is positioned below the silencing chamber, and the first filtering structure covers the oil return area.

Further, the casing includes upper cover, barrel and bottom that connects gradually, the upper cover, the barrel with the bottom surrounds formation the chamber is held, wherein, the bottom has the recess, the recess forms oil return area, the oil return opening with the air feed opening all is located the bottom, the position of setting of air feed opening is higher than the position of setting of oil return opening.

Furthermore, the silencing chamber is located above the oil return area, a liquid return hole is formed in the bottom wall of the silencing chamber, and two ends of the liquid return hole are communicated with the silencing cavity and the accommodating cavity respectively.

Furthermore, a plurality of bulges are distributed on the inner wall of the silencing chamber, and/or a plurality of grooves are distributed on the inner wall of the silencing chamber.

Further, the air inlet is located above the air outlet, and the air inlet and the air outlet are spaced apart in a horizontal direction.

Furthermore, the sound attenuation cavity is a sphere, an ellipsoid or a cuboid.

Further, the plurality of sound-deadening chambers are connected in series, and the plurality of sound-deadening chambers have the same shape or different shapes.

Further, the reservoir still including set up hold second filtration, first blast pipe and the second blast pipe of intracavity, the amortization room first blast pipe with the second blast pipe all is located the below of second filtration, wherein, first blast pipe one end with hold the chamber intercommunication, first blast pipe the other end with the air inlet intercommunication, the both ends of second blast pipe respectively with the gas outlet with the air feed mouth intercommunication.

Further, the reservoir further comprises: the air inlet pipe is communicated with the upper part of the accommodating cavity; one end of the oil return pipe is communicated with the oil return port, and the other end of the oil return pipe is used for leading to an oil pool of the compressor; and one end of the air supply pipe is communicated with the air supply port, and the other end of the air supply pipe is used for leading to the air cylinder of the compressor.

According to another aspect of the present invention, there is provided a compressor comprising the above-mentioned liquid reservoir, wherein the air supply port of the liquid reservoir is communicated with the cylinder in the main body structure, and the oil return port of the liquid reservoir is communicated with the oil pool in the main body structure.

The technical scheme of the invention is applied to provide a liquid storage device, which comprises a shell, a plugging structure and a silencing chamber, wherein a containing cavity is formed in the shell, the bottom of the containing cavity is an oil return area, the bottom of the shell is provided with an oil return port and an air supply port, and the oil return port is communicated with the oil return area; the blocking structure is arranged in the oil return area, and at least one part of the blocking structure is movably arranged so as to avoid or block an oil return port; the silencing chamber is arranged in the accommodating cavity and is provided with a silencing cavity, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the silencing cavity, the through-flow sectional area of the silencing cavity is larger than the area of the air inlet and larger than the area of the air outlet, and the air outlet is communicated with the air supply port. The oil return port is used for returning the lubricating oil collected in the oil return area to an oil pool of the compressor, and the air supply port is used for conveying the gaseous refrigerant in the shell to a pump body of the compressor. Through the cooperation of block structure and oil return opening, can make lubricating oil backward flow in the oil bath when the lubricating oil of collecting in the oil return district is more, block structure block oil return opening when the lubricating oil in the oil return district is less avoids gaseous through getting into the oil return opening, has consequently improved the oil return ability of reservoir. Gaseous refrigerant in the reservoir gets into the amortization room first before getting into the pump body, and after the refrigerant got into the amortization room, because flow area increases, reduced gaseous refrigerant's velocity of flow and the collision between the gaseous refrigerant, reduced the air current excitation of refrigerant to the noise and the vibration of reservoir have been reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a reservoir provided in an embodiment of the present invention;

fig. 2 shows a schematic view of a blocking structure in the reservoir of fig. 1;

fig. 3 is a schematic structural diagram of a reservoir provided in the second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a reservoir provided in the third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a reservoir provided in the fourth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a reservoir provided in the fifth embodiment of the present invention;

fig. 7 is a schematic structural diagram of a reservoir provided in the sixth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a reservoir provided in the seventh embodiment of the invention;

fig. 9 shows a schematic structural diagram of a compressor according to an eighth embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. an oil return area; 12. an upper cover; 13. a barrel; 14. a bottom cover; 20. a blocking structure; 21. a blocking member; 22. a support; 23. a connecting rod; 30. a sound deadening chamber; 31. a liquid return hole; 32. a protrusion; 40. a first filter structure; 41. a first bracket; 42. a first filter screen; 43. a first pressure ring; 50. a second filter structure; 51. a second bracket; 52. a second filter screen; 53. a second pressure ring; 61. a first exhaust pipe; 62. a second exhaust pipe; 63. an air inlet pipe; 64. an oil return pipe; 65. an air supply pipe; 66. a separator.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the accompanying drawings, embodiments of the present invention provide a reservoir comprising: the air conditioner comprises a shell 10, wherein a containing cavity is arranged in the shell 10, the bottom of the containing cavity is an oil return area 11, the bottom of the shell 10 is provided with an oil return port and an air supply port, and the oil return port is communicated with the oil return area 11; the blocking structure 20 is arranged in the oil return area 11, and at least one part of the blocking structure 20 is movably arranged to avoid or block an oil return opening; the silencing chamber 30 is arranged in the accommodating cavity, the silencing chamber 30 is provided with a silencing cavity, an air inlet and an air outlet which are communicated with the silencing cavity, the flow cross section area of the silencing cavity is larger than the area of the air inlet and larger than the area of the air outlet, and the air outlet is communicated with the air supply port.

Wherein, the oil return port is used for returning the lubricating oil collected in the oil return area 11 to an oil pool of the compressor, and the air supply port is used for conveying the gaseous refrigerant in the shell 10 to a pump body of the compressor. Through the cooperation of plugging structure 20 and oil return opening, can make lubricating oil backward flow in the oil bath when the lubricating oil that collects in oil return district 11 is more, plugging structure 20 shutoff oil return opening when the lubricating oil in the oil return district is less avoids gaseous through getting into the oil return opening, has consequently improved the oil return ability of reservoir. Gaseous refrigerant in the reservoir enters the anechoic chamber 30 before entering the pump body, and after the refrigerant enters the anechoic chamber 30, the flow area is increased, so that the flow rate of the gaseous refrigerant and the collision among the gaseous refrigerants are reduced, the air flow excitation of the refrigerant is reduced, and the noise and vibration of the reservoir are reduced. Therefore, the scheme improves the performance of the compressor.

In the present embodiment, the blocking structure 20 comprises a movably arranged blocking piece 21, wherein the blocking piece 21 blocks the oil return opening when the liquid level in the oil return area 11 is lower than a preset height, and the blocking piece 21 avoids the oil return opening when the liquid level in the oil return area 11 reaches the preset height. Therefore, the phenomenon that the lubricating oil stored in the oil return area 11 is too much, so that the lubricating oil in the pump body is too little to influence the lubrication is avoided, and the good lubrication of the pump body is ensured. Moreover, the gas output from the oil return port under the condition of less lubricating oil is avoided.

Optionally, a liquid level detector may be arranged in the return area 11 to detect the liquid level in the return area 11. The blocking structure 20 can be provided as a solenoid valve, and whether the blocking structure 20 needs to be opened or closed is determined by the detection result of the liquid level detector. This allows for automatic control.

In the present exemplary embodiment, the closure piece 21 floats in the return area 11 by the combined effect of gravity and buoyancy to avoid or close the return opening. That is, when the amount of the lubricant in the oil return area 11 increases and the buoyancy of the plugging member 21 is greater than the gravity, the plugging member 21 floats upward to automatically open the oil return opening, and when the buoyancy of the plugging member 21 is smaller than the gravity after the amount of the lubricant output in the oil return area 11 decreases, the plugging member 21 descends to automatically plug the oil return opening. Thus, the automatic opening and closing of the oil return port can be realized by a simple structure, and the manufacturing cost is low. In this embodiment, the oil return port is located at the lowest position of the oil return area, which facilitates oil return. Alternatively, the blocking piece 21 is of a spherical structure, which improves the blocking effect on the oil return opening.

Further, the blocking structure 20 further comprises a support 22 and a connecting rod 23, the support 22 is disposed on the inner wall of the housing 10, one end of the connecting rod 23 is hinged to the support 22, and the other end of the connecting rod 23 is hinged to the blocking piece 21. By arranging the support 22 and the connecting rod 23, the movement of the plugging piece 21 is ensured, and the plugging piece 21 is limited, so that the plugging piece 21 is prevented from moving randomly.

Because the internal environment of the reservoir is harsh, it is important to select a suitable material for making the blocking structure 20. Wherein the block piece 21 is made of Nitrile Butadiene Rubber (NBR). The support 22 and the link 23 may also be made of nitrile rubber. The nitrile rubber has good oil resistance, wear resistance, and heat resistance, and thus can improve the reliability of the blocking structure 20.

In this embodiment, the reservoir further comprises: and a first filter structure 40, wherein the first filter structure 40 is positioned below the silencing chamber 30, and the first filter structure 40 covers the oil return area 11. Through setting up first filtration 40, can filter the liquid such as lubricating oil that gets into oil return district 11, guarantee the cleanness of liquid, avoid impurity to get into in the pump body. A typical reservoir typically filters fluid entering the receiving chamber, while the lubricant that collects at the bottom of the receiving chamber is unfiltered. Through this scheme can filter liquid such as lubricating oil once more, further improved clean degree.

Alternatively, the first filtering structure 40 includes a first bracket 41, a first filter 42, and a first press ring 43, the first bracket 41 being disposed on the inner wall of the casing 10, the first filter 42 being disposed on the first bracket 41, the first press ring 43 pressing the first filter 42. This allows the liquid to be filtered by the first strainer 42 and is securely mounted.

In this embodiment, the housing 10 includes an upper cover 12, a cylinder 13, and a bottom cover 14 connected in sequence, the upper cover 12, the cylinder 13, and the bottom cover 14 form a receiving cavity around them, wherein the bottom cover 14 has a groove, the groove forms the oil return area 11, the oil return opening and the air supply opening are both located on the bottom cover 14, and the position of the air supply opening is higher than the position of the oil return opening. The arrangement is such that the oil return area 11 is at the lowest position of the housing 10, which facilitates collection of the lubricating oil. Optionally, the oil return area 11 is a hemispherical groove, which facilitates the collection of oil.

When an electric appliance such as an air conditioner runs under unfavorable working conditions of opening, defrosting or low outdoor temperature and the like, a large amount of liquid refrigerant flows back to a pump cavity. If the liquid content of the gas sucked into the pump cavity is too much, the lubricating oil in the pump body can be diluted, so that the lubricating state is deteriorated, and in a serious case, the direct compression of the liquid refrigerant by the pump body is generated, so that the damage of pump body parts is caused.

In the present embodiment, the silencing chamber 30 is located above the oil return area 11, and the bottom wall of the silencing chamber 30 has a liquid return hole 31, and two ends of the liquid return hole 31 are respectively communicated with the silencing cavity and the accommodating cavity. By adopting the scheme, liquid drops mixed in the gas entering the silencing chamber 30 can be output through the liquid return hole 31 and then enter the oil return area 11, so that the liquid drops are prevented from entering the pump body, and the pump body can be prevented from being damaged. Wherein, the liquid return hole 31 can be provided in plurality to improve the backflow effect.

In this embodiment, a plurality of protrusions 32 are distributed on the inner wall of the sound-deadening chamber 30, and/or a plurality of grooves are distributed on the inner wall of the sound-deadening chamber 30. The design structure further separates gas-liquid refrigerants and can obviously reduce the flow velocity of the gaseous refrigerants and the collision among the gaseous refrigerants, so that the vibration excitation, the transmission sound and the vibration acceleration of the liquid storage device of the high-speed refrigerant airflow are improved.

In this embodiment, the air inlet is located above the air outlet, and the air inlet and the air outlet are spaced apart in the horizontal direction. This increases the flow path of the gas in the muffling chamber 30, and the side walls of the muffling chamber 30 block the gas entering from the gas inlet, thereby better reducing the gas flow rate and reducing noise and vibration.

As can be seen from the different embodiments shown in the drawings, the silencing chamber of the silencing chamber 30 can take various shapes, such as a sphere, an ellipsoid, a cuboid, etc., as long as the use requirement is met.

Further, the sound-deadening chamber 30 may be provided in plural, plural sound-deadening chambers 30 may be connected in series, plural sound-deadening chambers 30 may have the same shape, or plural sound-deadening chambers 30 may have different shapes. Thus, the gas sequentially enters the different muffling chambers 30, and the muffling and vibration reducing effects can be further improved. The plurality of chambers 30 is at least two, and of course, the plurality of chambers may be arranged in parallel or in a mixed manner of parallel and series.

In this embodiment, the reservoir further includes a second filtering structure 50, a first exhaust pipe 61 and a second exhaust pipe 62 which are arranged in the accommodating cavity, the anechoic chamber 30, the first exhaust pipe 61 and the second exhaust pipe 62 are all located below the second filtering structure 50, wherein one end of the first exhaust pipe 61 is communicated with the accommodating cavity, the other end of the first exhaust pipe 61 is communicated with the air inlet, and two ends of the second exhaust pipe 62 are respectively communicated with the air outlet and the air supply port. The second filtering structure 50 can filter the fluid entering the reservoir and accelerate the gas-liquid separation. The first exhaust pipe 61 and the second exhaust pipe 62 are used to guide gas for delivery into the pump body.

Optionally, the reservoir further comprises a partition 66 disposed within the housing 10, the first exhaust pipe 61 passing through the partition 66. The partition 66 may serve as a spacing and fixing member.

Optionally, the second filtering structure 50 comprises a second bracket 51, a second filter screen 52 and a second press ring 53, the second bracket 51 being arranged on the inner wall of the casing 10, the second filter screen 52 being arranged on the second bracket 51, the second press ring 53 pressing against the second filter screen 52. This allows the fluid to be filtered by the second screen 52 and is securely mounted.

In this embodiment, the reservoir further comprises: the air inlet pipe 63 is communicated with the upper part of the accommodating cavity; one end of the oil return pipe 64 is communicated with an oil return port, and the other end of the oil return pipe 64 is used for leading to an oil pool of the compressor; and an air supply pipe 65, one end of the air supply pipe 65 being communicated with the air supply port, and the other end of the air supply pipe 65 being used for leading to the cylinder of the compressor.

Another embodiment of the present invention provides a compressor, which includes a main body structure and the above-mentioned liquid reservoir, wherein an air supply port of the liquid reservoir is communicated with an air cylinder in the main body structure, and an oil return port of the liquid reservoir is communicated with an oil tank in the main body structure. Through the cooperation of plugging structure 20 and oil return opening, can make lubricating oil backward flow in the oil bath when the lubricating oil that collects in oil return district 11 is more, plugging structure 20 shutoff oil return opening when the lubricating oil in the oil return district is less avoids gaseous through getting into the oil return opening, has consequently improved the oil return ability of reservoir. Gaseous refrigerant in the reservoir enters the anechoic chamber 30 before entering the pump body, and after the refrigerant enters the anechoic chamber 30, the flow area is increased, so that the flow rate of the gaseous refrigerant and the collision among the gaseous refrigerants are reduced, the air flow excitation of the refrigerant is reduced, and the noise and vibration of the reservoir are reduced. Therefore, the scheme improves the performance of the compressor.

By the scheme, the oil discharge rate of the compressor can be reduced, the oil level height of an oil pool in the compressor is ensured, the lubricating effect of each friction pair of the compressor is improved, and the reliability of the compressor is improved; the anechoic chamber in the scheme can also obviously improve pneumatic noise and the like generated by air flow excitation in the liquid storage device; in addition, the scheme can carry out secondary liquid return on the refrigerant, and reduces the abrasion of the suction belt liquid to pump body parts.

The liquid storage device in the scheme can be applied to a single-cylinder compressor and can also be applied to a double-cylinder, a three-cylinder and a two-stage enthalpy-increasing rotary compressor, and the device can be applied to all problems of oil return of the liquid storage device, so that automatic oil return is realized, and the liquid level of an oil pool in a cavity of the compressor is guaranteed. The shape structure of the silencing chamber can be various, and specifically has a shape of a stomach, an ellipsoid, a sphere, a cuboid, a cube, a plurality of serial shapes, series-parallel shapes and the like, so that the silencing and vibration damping effects of the liquid storage device are realized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reservoir, comprising:

the air conditioner comprises a shell (10), wherein a containing cavity is arranged in the shell (10), the bottom of the containing cavity is an oil return area (11), the bottom of the shell (10) is provided with an oil return port and an air supply port, and the oil return port is communicated with the oil return area (11);

the blocking structure (20) is arranged in the oil return area (11), and at least one part of the blocking structure (20) is movably arranged so as to avoid or block the oil return opening;

the silencing chamber (30) is arranged in the accommodating cavity, the silencing chamber (30) is provided with a silencing cavity, an air inlet and an air outlet which are communicated with the silencing cavity, the flow cross-sectional area of the silencing cavity is larger than the area of the air inlet and larger than the area of the air outlet, and the air outlet is communicated with the air supply opening.

2. Reservoir according to claim 1, characterized in that the blocking structure (20) comprises a movably arranged blocking piece (21), wherein the blocking piece (21) blocks the oil return opening if the liquid level in the oil return area (11) is below a preset height, and the blocking piece (21) avoids the oil return opening if the liquid level in the oil return area (11) reaches the preset height.

3. Reservoir according to claim 2, characterized in that the closure piece (21) floats in the return area (11) by the combined action of gravity and buoyancy to avoid or close the return opening.

4. Reservoir according to claim 2, characterized in that the closure structure (20) further comprises a seat (22) and a connecting rod (23), the seat (22) being provided on the inner wall of the housing (10), one end of the connecting rod (23) being hinged to the seat (22) and the other end of the connecting rod (23) being hinged to the closure (21).

5. Reservoir according to claim 2, characterized in that said closure (21) is made of nitrile rubber.

6. The reservoir of claim 1, further comprising:

the first filtering structure (40), the first filtering structure (40) is located below the silencing chamber (30), and the first filtering structure (40) covers the oil return area (11).

7. The accumulator according to claim 1, characterized in that the casing (10) comprises an upper cover (12), a cylinder (13) and a bottom cover (14) connected in sequence, the upper cover (12), the cylinder (13) and the bottom cover (14) surround to form the containing cavity, wherein the bottom cover (14) has a groove forming the oil return area (11), the oil return opening and the air supply opening are both located in the bottom cover (14), and the air supply opening is located at a position higher than the oil return opening.

8. Reservoir according to claim 1, characterized in that the silencing chamber (30) is located above the oil return area (11), the bottom wall of the silencing chamber (30) is provided with a liquid return hole (31), and the two ends of the liquid return hole (31) are respectively communicated with the silencing cavity and the accommodating cavity.

9. The reservoir of claim 1,

a plurality of bulges (32) are distributed on the inner wall of the silencing chamber (30), and/or a plurality of grooves are distributed on the inner wall of the silencing chamber (30).

10. The reservoir of claim 1, wherein the air inlet is located above the air outlet, the air inlet and the air outlet being spaced apart in a horizontal direction.

11. The reservoir of claim 1, wherein the muffling chamber is a sphere, an ellipsoid, a cuboid.

12. Reservoir according to claim 1, characterized in that said silencing chamber (30) is a plurality, a plurality of said silencing chambers (30) are connected in series, the shape of a plurality of said silencing chambers (30) is the same, or the shape of a plurality of said silencing chambers (30) is different.

13. Reservoir according to claim 1, characterized in that it further comprises a second filtering structure (50), a first exhaust pipe (61) and a second exhaust pipe (62) arranged inside said housing chamber, said muffling chamber (30), said first exhaust pipe (61) and said second exhaust pipe (62) being all located below said second filtering structure (50), wherein one end of said first exhaust pipe (61) communicates with said housing chamber, the other end of said first exhaust pipe (61) communicates with said air inlet, and the two ends of said second exhaust pipe (62) communicate with said air outlet and said air inlet, respectively.

14. The reservoir of claim 1, further comprising:

the air inlet pipe (63), the air inlet pipe (63) is communicated with the upper part of the accommodating cavity;

one end of the oil return pipe (64) is communicated with the oil return port, and the other end of the oil return pipe (64) is used for leading to an oil pool of the compressor;

and one end of the air feeding pipe (65) is communicated with the air feeding port, and the other end of the air feeding pipe (65) is used for leading to a cylinder of the compressor.

15. A compressor comprising a body structure and an accumulator according to any one of claims 1 to 14, the accumulator having a supply air port in communication with a cylinder in the body structure and an oil return port in communication with an oil sump in the body structure.