Heat pump unit and air conditioning system

Abstract

The utility model discloses a heat pump unit and an air conditioning system. The heat pump unit comprises: an oil separator; the pipeline is connected with the oil separator; the damping assembly is arranged on the pipeline, the damping assembly comprises a shell and a plurality of moving parts, a containing cavity is formed in the shell, and the moving parts can be movably arranged in the containing cavity. According to the heat pump unit, when the pipeline vibrates, vibration can be transmitted to the moving part in the shell of the damping assembly, and kinetic energy of the pipeline is transmitted to the moving part in the damping assembly, so that the energy absorption effect is achieved, vibration of the pipeline is reduced, vibration of the whole machine is reduced, and the problems of pipeline breakage, leakage and the like caused by vibration of the unit are solved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a heat pump unit and an air conditioning system. Background Technology

[0002] In related technologies, heat pump units experience significant pipe vibration during operation, which can even cause resonance in certain frequency ranges. This vibration can lead to problems such as leaks or breaks in some pipes, thereby reducing the reliability of the heat pump unit. Utility Model Content

[0003] This utility model provides a heat pump unit and an air conditioning system to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a heat pump unit for an air conditioning system, the heat pump unit comprising:

[0005] Oil separator;

[0006] Pipeline, the pipeline being connected to the oil separator;

[0007] A damping assembly is disposed on the pipeline. The damping assembly includes a housing and a plurality of moving parts. The housing has a receiving cavity, and the moving parts are movably disposed in the receiving cavity.

[0008] In the aforementioned heat pump unit, when the pipeline vibrates, the vibration can be transmitted to the moving parts inside the housing of the damping component, transferring the kinetic energy of the pipeline to the moving parts inside the damping component, thereby achieving an energy absorption effect, reducing the vibration of the pipeline, and thus reducing the vibration of the entire unit, avoiding problems such as pipeline breakage and leakage caused by vibration.

[0009] In some embodiments, the heat pump unit includes a connector through which the damping assembly is disposed on the pipeline.

[0010] In some embodiments, the connector is provided with a first mounting groove and a second mounting groove. The shape of the first mounting groove is adapted to the shape of the pipeline, and the pipeline is in contact with the side wall of the first mounting groove. The shape of the second mounting groove is adapted to the shape of the housing, and the housing is in contact with the side wall of the second mounting groove.

[0011] In some embodiments, the connector includes a first portion and a second portion, the first portion being connected to the second portion to clamp the damping assembly onto the conduit.

[0012] In some embodiments, the heat pump unit includes a fastening assembly through which the first portion and the second portion are connected.

[0013] In some embodiments, the fastening assembly includes a spring washer, a bolt, and a nut, the bolt passing through the first portion, the second portion, and the spring washer, and connected to the nut to lock the first portion and the second portion, the spring washer being sandwiched between the first portion and the nut, or the spring washer being sandwiched between the second portion and the nut.

[0014] In some embodiments, the heat pump unit includes an elastic element disposed between the housing and the piping.

[0015] In some embodiments, the moving part occupies 80% to 85% of the volume of the receiving cavity.

[0016] In some embodiments, the diameter of the moving part is 2 mm to 5 mm.

[0017] In some embodiments, the diameter of the damping component is DN65 to DN300, and the difference between the diameter of the damping component and the diameter of the pipeline is less than a preset value.

[0018] In some embodiments, the housing includes a tube and two cover plates, the two ends of the tube being open ends, and the two cover plates being respectively disposed at the open ends of the tube to jointly form the receiving cavity.

[0019] An air conditioning system according to an embodiment of the present invention includes the heat pump unit described in any of the above embodiments.

[0020] In the aforementioned air conditioning system, when the pipeline vibrates, the vibration can be transmitted to the moving parts inside the housing of the damping component, transferring the kinetic energy of the pipeline to the moving parts inside the damping component, thereby achieving an energy absorption effect, reducing the vibration of the pipeline, and thus reducing the vibration of the entire unit, avoiding problems such as pipeline breakage and leakage caused by vibration.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figures 1 to 2 This is a partial structural schematic diagram of the heat pump unit according to an embodiment of the present invention;

[0024] Figure 3 This is a partial cross-sectional schematic diagram of the heat pump unit according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the damping component according to an embodiment of the present invention;

[0026] Figure 5 This is a cross-sectional schematic diagram of the damping component according to an embodiment of the present invention.

[0027] Explanation of key component reference numerals:

[0028] Heat pump unit 100, oil separator 12, pipeline 14, damping assembly 16, housing 18, moving part 20, receiving cavity 22, connector 24, first mounting groove 26, second mounting groove 28, first part 30, second part 32, fastening assembly 33, bolt 34, nut 36, spring washer 37, elastic washer 38, pipe body 40, cover plate 42. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] Please see Figures 1 to 5 This utility model provides a heat pump unit 100 for use in an air conditioning system. The heat pump unit 100 includes an oil separator 12, a pipeline 14, and a damping assembly 16. The pipeline 14 is connected to the oil separator 12. The damping assembly 16 is disposed on the pipeline 14 and includes a housing 18 and a plurality of moving parts 20. The housing 18 has a receiving cavity 22, and the moving parts 20 are movably disposed in the receiving cavity 22.

[0035] In the aforementioned heat pump unit 100, when the pipe 14 vibrates, the vibration can be transmitted to the moving part 20 inside the housing 18 of the damping component 16, transferring the kinetic energy of the pipe 14 to the moving part 20 inside the damping component 16, thereby achieving an energy absorption effect, reducing the vibration of the pipe 14, thereby reducing the vibration of the entire unit, and avoiding problems such as pipe 14 breakage and leakage caused by vibration.

[0036] Specifically, the heat pump unit 100 includes, but is not limited to, a screw-type high-temperature heat pump unit. The heat pump unit 100 can be installed in a machine room. The air conditioning system may also include terminal equipment, which can be connected to the heat pump unit 100 via pipes and can be installed indoors. The heat pump unit 100 outputs hot water, which is then transported to the terminal equipment via pipes. The terminal equipment dissipates the heat of the hot water into the room to heat the indoor environment. Water that has cooled down can flow back to the heat pump unit 100, which reheats the water to form hot water again and then delivers it to the terminal equipment, thus forming a water circulation system. Terminal equipment includes, but is not limited to, radiators, underfloor heating, and fan coil units.

[0037] Oil separator 12 includes, but is not limited to, cyclone oil separators. A cyclone oil separator is a device that uses the centrifugal force generated by a rotating airflow to separate solid particles or gas from oil. Specifically, when a mixture containing oil and solid particles or gas enters the cyclone oil separator, it is tangentially introduced to create rotational motion. During rotation, solid particles or gas with greater inertial centrifugal force are thrown towards the outer wall, while the oil flows to the bottom due to gravity, thus achieving separation. The separated gas can be discharged from pipe 14.

[0038] In related technologies, the exhaust pipe connected to the cyclone oil separator is unsupported, resulting in significant vibration during cyclone oil separator operation. In certain frequency ranges, the exhaust pipe may even resonate. This vibration can lead to leaks / breaks in some pipelines, reducing the unit's reliability.

[0039] In this embodiment of the invention, the damping component 16 is disposed on the pipe 14 connected to the oil separator 12. When the vibration of the oil separator 12 during operation is transmitted to the pipe 14, the vibration can be converted into free movement of the moving part 20 of the damping component 16 within the housing 18. This absorbs most of the vibration and disrupts the resonant frequency range, effectively reducing the vibration of the heat pump unit 100. This effectively avoids failures such as leakage / breakage of the pipe 14 due to vibration / resonance problems, improving the reliability of the heat pump unit 100. The pipe 14 with the damping component 16 may include, but is not limited to, the exhaust pipe connected to the oil separator 12. In one example, the damping component 16 may be constructed as a metal damper. The moving part 20 includes, but is not limited to, steel shot.

[0040] The housing 18 may be made of materials including, but not limited to, stainless steel. Optionally, the damping component 16 may be detachably mounted on the pipe 14. The installation position of the damping component 16 on the pipe 14 can be determined by simulation, testing, or other methods, and this invention does not impose specific limitations.

[0041] The shape of the moving part 20 includes, but is not limited to, regular or irregular shapes. Regular shapes include, but are not limited to, spheres, cubes, cuboids, etc.

[0042] In some embodiments, the heat pump unit 100 includes a connector 24, through which a damping assembly 16 is disposed on a pipe 14.

[0043] Therefore, the damping component 16 can be conveniently installed on the pipeline 14.

[0044] Specifically, connector 24 can connect damping component 16 and pipeline 14, allowing vibrations of pipeline 14 to be directly and / or indirectly transmitted to damping component 16. During installation, damping component 16 can be first installed on the entirety or a portion of connector 24, and then the connector 24 with damping component 16 can be installed entirely onto pipeline 14, or a portion of connector 24 with damping component 16 can be connected to another portion of connector 24 installed on pipeline 14, thereby enabling the installation of damping component 16.

[0045] One part of the connector 24 can be connected to another part by means including but not limited to bolts, clips, etc.

[0046] In some embodiments, the connector 24 is provided with a first mounting groove 26 and a second mounting groove 28. The shape of the first mounting groove 26 is adapted to the shape of the pipe 14, and the pipe 14 is in contact with the side wall of the first mounting groove 26. The shape of the second mounting groove 28 is adapted to the shape of the housing 18, and the housing 18 is in contact with the side wall of the second mounting groove 28.

[0047] This allows for a tighter connection between the damping component 16 and the pipeline 14, which is beneficial to the stability of the damping component 16 during long-term use.

[0048] Specifically, in Figure 1 and Figure 2 In the illustrated embodiment, the pipe 14 is cylindrical, the first mounting groove 26 is semi-cylindrical, and a portion of the circumferential side of the pipe 14 is placed within the first mounting groove 26 and fits against the side wall of the first mounting groove 26. The housing 18 is cylindrical, the second mounting groove 28 is semi-cylindrical, and a portion of the circumferential side of the housing 18 is placed within the second mounting groove 28 and fits against the side wall of the second mounting groove 28.

[0049] The shape of the first mounting groove 26 is adapted to the shape of the pipe 14, and the pipe 14 fits against the side wall of the first mounting groove 26. The shape of the second mounting groove 28 is adapted to the shape of the housing 18, and the housing 18 fits against the side wall of the second mounting groove 28. This results in a large and tight contact area between the connector 24 and the pipe 14 and the housing 18 of the damping assembly 16, which is beneficial to the stability of the damping assembly 16 during long-term use. During the long-term use of the heat pump unit 100, the damping assembly 16 is less likely to loosen or fall off the pipe 14 due to vibration, thus ensuring the vibration reduction effect of the damping assembly 16 to a certain extent.

[0050] In some embodiments, the connector 24 includes a first portion 30 and a second portion 32, the first portion 30 being connected to the second portion 32 to clamp the damping assembly 16 onto the conduit 14.

[0051] Therefore, the damping component 16 can be installed on the pipe 14 by clamping.

[0052] Specifically, in Figure 1 and Figure 2 In the middle, the first part 30 is provided with a first mounting slot 26, and the second part 32 is provided with a second mounting slot 28. Figure 1 and Figure 2 In the middle, the first part 30 and the second part 32 are not yet connected. Figure 1 and Figure 2 In the illustrated embodiment, the heat pump unit 100 includes multiple connectors 24, and the damping assembly 16 is fixed to the pipe 14 via the multiple connectors 24. The first portion 30 and the second portion 32 of each connector 24 are connected by a combination of two pairs of bolts 34 and nuts 36, thereby clamping the damping assembly 16 to the pipe 14. It is understood that in other embodiments, the first portion 30 and the second portion 32 can also be connected by means of clips, rivets, etc. The damping assembly 16 can also be fixed to the pipe 14 via a single connector 24; this invention does not specifically limit this method.

[0053] Connectors include, but are not limited to, clamps.

[0054] In some embodiments, the heat pump unit 100 includes a fastening assembly 33, through which the first portion 30 and the second portion 32 are connected.

[0055] Therefore, the first part 30 and the second part 32 can be fixedly connected by the fastening component 33, and the fixing effect is good.

[0056] Specifically, the fastening assembly 33 can connect the first part 30 and the second part 32, so that the first part 30 and the second part 32 clamp the damping assembly 16 onto the pipeline 14. Furthermore, the fastening assembly 33 can make the first part 30 and the second part 32 detachably connected, thereby facilitating the maintenance of the damping assembly 16. The fastening assembly 33 includes, but is not limited to, fastening the first part 30 and the second part 32 with bolts, clips, pins, rivets, etc.

[0057] In some embodiments, the fastening assembly 33 includes a spring washer 37, a bolt 34, and a nut 36. The bolt 34 passes through the first portion 30, the second portion 32, and the spring washer 37, and is connected to the nut 36 to lock the first portion 30 and the second portion 32. The spring washer 37 is sandwiched between the first portion 30 and the nut 36, or between the second portion 32 and the nut 36.

[0058] Therefore, the spring washer 37 can serve to tighten and prevent slippage of the nut 36, which is beneficial to improving the fixing effect of the damping assembly 16.

[0059] Specifically, please combine Figures 1 to 3 In one embodiment, bolt 34 passes through the second portion 32, the first portion 30, and spring washer 37 in sequence, and is connected to nut 36 to lock the first portion 30 and the second portion 32, with spring washer 37 sandwiched between the first portion 30 and nut 36. In other embodiments, bolt 34 passes through the first portion 30, the second portion 32, and spring washer 37 in sequence, and is connected to nut 36 to lock the first portion 30 and the second portion 32, with spring washer 37 sandwiched between the second portion 32 and nut 36. The connection of bolt 34 and nut 36 to lock the first portion 30 and the second portion 32 allows the first portion 30 and the second portion 32 to clamp the damping assembly 16.

[0060] The spring washer 37 is sandwiched between the second part 32 and the nut 36, or between the first part 30 and the nut 36, so that the spring washer 37 can provide a reaction force to the first part 30 and the nut 36, or the second part 32 and the nut 36. This reaction force helps the nut 36 to be less loose on the bolt 34, thereby achieving the function of tightening and anti-slipping the nut 36, which helps to improve the fixing effect of the damping assembly 16.

[0061] In some embodiments, the heat pump unit 100 includes an elastic gasket 38 disposed between the housing 18 and the pipe 14.

[0062] Therefore, the vibration of the pipe 14 can be transmitted to the damping component 16 through the elastic pad 38, and absorbed by the moving part 20 inside the damping component 16, thereby achieving the energy absorption effect.

[0063] Specifically, in one embodiment, the shape of the side of the elastic gasket 38 that contacts the housing 18 is adapted to the shape of the housing 18, and the shape of the side of the elastic gasket 38 that contacts the pipe 14 is adapted to the shape of the pipe 14, so that the connection between the elastic gasket 38 and the housing 18 and the pipe 14 can be tight, which is beneficial to the transmission of vibration.

[0064] The elastic gasket 38 can also absorb some of the vibration, which helps to improve the vibration reduction effect. The elastic gasket 38 includes, but is not limited to, rubber gaskets.

[0065] In some embodiments, the moving part 20 occupies 80% to 85% of the volume in the receiving cavity 22.

[0066] This can improve the vibration reduction effect of pipe 14.

[0067] Specifically, the volume of the moving parts 20 in the receiving cavity 22 accounts for 80% to 85%. On the one hand, this ensures that there are enough moving parts 20 in the receiving cavity 22 to convert the vibration of the pipeline 14 into the kinetic energy of the moving parts 20, resulting in good energy absorption. On the other hand, the reserved space of 15% to 20% in the receiving cavity 22 allows the moving parts 20 sufficient space to move during vibration, thereby consuming the kinetic energy generated by the vibration. In summary, this improves the vibration reduction effect of the pipeline 14, resulting in better energy absorption and effectively reducing the vibration of the pipeline 14.

[0068] The volume percentage of the moving part 20 in the receiving cavity 22 is K, which is 80% to 85%, that is, 80% ≤ K ≤ 85%. In some examples, K = 80%, 81%, 82%, 83%, 84%, 85%, or other values ​​between 80% and 85%.

[0069] In some embodiments, the diameter of the moving part 20 is 2 mm to 5 mm.

[0070] Therefore, the moving part 20 has strong versatility and low cost.

[0071] Specifically, the moving part 20 is spherical, and the moving part 20 with a diameter of 2mm to 5mm can be an international moving part 20, which is highly versatile, easy to obtain, and low in cost.

[0072] The diameter of the moving part 20 is D, which is 2 mm to 5 mm, that is, 2 mm ≤ D ≤ 5 mm. In some examples, D = 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm or other values ​​of 2 mm to 5 mm.

[0073] In some embodiments, the diameter of the damping component 16 is DN65 to DN300, and the difference between the diameter of the damping component 16 and the diameter of the pipe 14 is less than a preset value.

[0074] Therefore, the vibration reduction effect can be improved to a certain extent.

[0075] Specifically, DN represents the nominal diameter. DN65 indicates a nominal diameter of 65 mm, and DN300 indicates a nominal diameter of 300 mm. In this embodiment, the diameter (specification) of the damping component 16 can be selected according to the pipe diameter of the pipe 14. The pipe diameter of the heat pump unit 100's pipe 14 is DN65 to DN300, and the diameter of the damping component 16 can be DN65 to DN300, or a diameter corresponding to a difference between the pipe diameter and the pipe diameter of the damping component 16 that is less than a preset value.

[0076] The difference between the diameter of the damping component 16 and the diameter of the pipe 14 can refer to the difference between the larger and smaller diameters when the diameters of the damping component 16 and the pipe 14 are not equal; or the difference between the two diameters when the diameters of the damping component 16 and the pipe 14 are equal. The preset value can be determined based on factors such as vibration reduction performance, energy absorption effect, and cost. If the difference between the diameter of the damping component 16 and the pipe 14 is less than the preset value, the diameter of the damping component 16 can be equal to or close to the diameter of the pipe 14.

[0077] Optionally, in one embodiment, the diameter of the damping component 16 is equal to the diameter of the pipe 14, which can make the diameter of the damping component 16 compatible with the diameter of the pipe 14, thereby further improving the energy absorption effect and vibration reduction effect.

[0078] The diameter of the damping component 16 is L, which is DN65 to DN300, that is, DN65≤L≤DN300. In some examples, L = DN65, DN70, DN75, DN80, DN85, DN90, DN95, DN100, DN125, DN150, DN175, DN200, DN215, DN250, DN275, DN300, or other specifications between DN65 and DN300.

[0079] In some implementations, please refer to Figure 4 and Figure 5 The housing 18 includes a tube 40 and two cover plates 42. The two ends of the tube 40 are open ends, and the two cover plates 42 are respectively provided at the open ends of the tube 40 to jointly form a receiving cavity 22.

[0080] Therefore, the damping component 16 has a simple structure and is easy to assemble.

[0081] Specifically, in one embodiment, the two cover plates 42 can be an upper cover plate and a lower cover plate, respectively, and the upper and lower ends of the tube body 40 are open ends. A cylindrical space is formed inside the tube body 40. The upper cover plate is located at the upper open end, and the lower cover plate is located at the lower open end, so as to enclose the cylindrical space from the upper and lower directions respectively, thereby forming a cylindrical receiving cavity 22.

[0082] During assembly, one cover plate 42 can be fixed to one open end, making one end of the tube 40 fully or partially closed. Then, the moving part 20 can be placed into the housing 18 from the other open end. After all the moving parts 20 are placed into the tube 40, another cover plate 42 can be fixed to the other open end, making the other open end fully or partially closed, thereby forming a receiving cavity 22 to accommodate the moving parts 20. The receiving cavity 22 can be sealed or not sealed, provided that the moving parts 20 will not fall out of the housing 18 from the receiving cavity 22.

[0083] The materials of the cover plate 42 and the pipe body 40 include, but are not limited to, stainless steel. The materials of the cover plate 42 and the pipe body 40 can be the same or different. The connection methods between the cover plate 42 and the pipe body 40 include, but are not limited to, welding, bolting, and threaded connection.

[0084] An air conditioning system according to an embodiment of the present invention includes a heat pump unit 100 according to any of the above embodiments.

[0085] In the aforementioned air conditioning system, when the pipe 14 vibrates, the vibration can be transmitted to the moving part 20 inside the housing 18 of the damping assembly 16, transferring the kinetic energy of the pipe 14 to the moving part 20 inside the damping assembly 16, thereby achieving an energy absorption effect, reducing the vibration of the pipe 14, thereby reducing the vibration of the entire unit, and avoiding problems such as pipe 14 breakage and leakage caused by vibration.

[0086] Specifically, the air conditioning system may include terminal devices, and the heat pump unit 100 may be located in a machine room. The terminal devices can be connected to the heat pump unit 100 via pipes and can be installed indoors. The heat pump unit 100 outputs hot water, which is then transported to the terminal devices via pipes. The terminal devices dissipate the heat from the hot water into the room to heat the indoor environment. Water that has cooled down can flow back to the heat pump unit 100, which reheats the water to form hot water again and then delivers it to the terminal devices, thus creating a water circulation system. Terminal devices include, but are not limited to, radiators, underfloor heating, and fan coil units.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat pump unit for use in an air conditioning system, characterized by, The heat pump unit comprises: an oil separator; a pipeline connecting the oil separator; a damping assembly provided on the pipeline, the damping assembly comprising a shell and a plurality of moving pieces, the shell being provided with a containing cavity, and the moving pieces being movably arranged in the containing cavity.

2. The heat pump unit of claim 1, wherein, The heat pump unit comprises a connecting piece, and the damping assembly is provided on the pipeline through the connecting piece.

3. The heat pump unit of claim 2, wherein, The connecting piece is provided with a first mounting groove and a second mounting groove, the shape of the first mounting groove is matched with the shape of the pipeline, the pipeline is attached to the side wall of the first mounting groove, the shape of the second mounting groove is matched with the shape of the shell, and the shell is attached to the side wall of the second mounting groove.

4. - Heat pump package according to claim 2 or 3, characterized in that, The connecting piece comprises a first part and a second part, and the first part is connected with the second part to clamp the damping assembly on the pipeline.

5. The heat pump unit of claim 4, wherein, The heat pump unit comprises a fastening assembly, and the first part and the second part are connected through the fastening assembly.

6. The heat pump unit of claim 5, wherein, The fastening assembly comprises a spring washer, a bolt and a nut, the bolt is arranged through the first part, the second part and the spring washer, and is connected with the nut to lock the first part and the second part, and the spring washer is clamped between the first part and the nut or between the second part and the nut.

7. The heat pump unit of claim 2, wherein, The heat pump unit comprises an elastic piece arranged between the shell and the pipeline.

8. The heat pump unit of claim 1, wherein, The volume ratio of the moving pieces in the containing cavity is 80% to 85%.

9. The heat pump unit of claim 1, wherein, The diameter of the moving pieces is 2mm to 5mm.

10. The heat pump unit of claim 1, wherein, The diameter of the damping assembly is DN65 to DN300, and the difference between the diameter of the damping assembly and the pipe diameter of the pipeline is less than a preset value.

11. The heat pump unit of claim 1, wherein, The shell comprises a pipe body and two cover plates, both ends of the pipe body are open ends, and the two cover plates are arranged at the open ends of the pipe body to jointly form the containing cavity.

12. An air conditioning system characterized by, The heat pump unit comprises the heat pump unit according to any one of claims 1-11.

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