CN112727735A

CN112727735A - Air suction pipe assembly, double-rotor compressor system and air conditioner

Info

Publication number: CN112727735A
Application number: CN202011577041.9A
Authority: CN
Inventors: 梁毅; 郑宏浩; 杨阳; 梁凯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-30

Abstract

The invention provides an air suction pipe assembly, a dual-rotor compressor system and an air conditioner, wherein the air suction pipe assembly comprises an air suction main pipe, a first air suction branch pipe and a second air suction branch pipe, the air suction main pipe is communicated with the first air suction branch pipe and the second air suction branch pipe through a flow divider, the first air suction branch pipe and/or the second air suction branch pipe are/is a hard pipe, and the first air suction branch pipe comprises a plurality of first U-shaped bending structures. According to the invention, the rigid pipe is adopted to replace a steel woven hose adopted in the prior art, meanwhile, the total length of the pipeline is increased by arranging the plurality of first U-shaped bending structures on the first air suction branch pipe, and according to Hooke's law, the longer the pipeline length is, the smaller the rigidity is, and the greater the flexibility is, so that the technical scheme of the invention has the advantages of low cost and small strain.

Description

Air suction pipe assembly, double-rotor compressor system and air conditioner

Technical Field

The invention belongs to the technical field of compressor manufacturing, and particularly relates to an air suction pipe assembly, a dual-rotor compressor system and an air conditioner.

Background

The two parallel compressor models face that pipeline vibration can not repeatedly meet related vibration requirements at the initial stage of principle prototype development, and show that pipeline stress basically meets related vibration requirements under the mode of starting one compressor, and only a few frequency sections exceed the standard, while the phenomena that the pipeline strain of a large area exceeds the standard seriously occur in a low operation frequency section, a middle operation frequency section and a high operation frequency section of the compressor when the two compressor models are started, particularly the suction pipeline is more serious, and the phenomenon has a larger difference with the prior cognition on the pipeline vibration characteristic of a single compressor system. In view of the foregoing phenomena, one treatment method in the prior art is to adopt a scheme of installing a steel fabric hose at an air suction port, but the scheme of adopting the steel fabric hose increases production cost and complexity in process, and the steel fabric hose used on a compressor has a risk of leakage failure at the root of the hose caused by compressor swing under road transportation; the other treatment method in the prior art is to adopt a parallel double-vortex compressor system for parallel rotor compressors, and the scheme is to utilize the characteristic that the vortex compressors vibrate less than the rotor compressors, so that the vibration reduction of pipelines is realized, and further, the stress strain of the pipelines is reduced, so that the sizes of the pipelines meet the requirements of companies and industries, but the scheme has the problem that the production cost of the vortex compressors is high.

Especially, when the compressor system is a frequency converter type, the problem of large-area overproof stress of a parallel pipeline system cannot be thoroughly solved by aiming at the natural frequency optimization of a certain section of suction pipeline corresponding to one compressor.

Disclosure of Invention

Therefore, the present invention is directed to provide a suction pipe assembly, a dual-rotor compressor system, and an air conditioner, so as to overcome the defect of large strain in the suction pipe assembly of the dual-rotor compressor system in the prior art.

In order to solve the above problems, the present invention provides an air suction pipe assembly, which includes an air suction main pipe, a first air suction branch pipe, and a second air suction branch pipe, wherein the air suction main pipe is communicated with the first air suction branch pipe and the second air suction branch pipe through a flow divider, the first air suction branch pipe and/or the second air suction branch pipe are hard pipes, and the first air suction branch pipe includes a plurality of first U-shaped bent structures.

Preferably, the first U-shaped bending structure includes a first U-bend, the first U-bend includes a first straight pipe section, a second straight pipe section, and a third straight pipe section, wherein the first straight pipe section is parallel to the third straight pipe section, a right angle is formed between the first straight pipe section and the second straight pipe section, a right angle is formed between the second straight pipe section and the third straight pipe section, an arc transition is formed between the first straight pipe section and the second straight pipe section, and an arc transition is formed between the second straight pipe section and the third straight pipe section.

Preferably, the first U-shaped bending structure further includes a second U-bend, the second U-bend includes a third straight pipe section, a fourth straight pipe section, and a fifth straight pipe section, the opening direction of the second U-bend is opposite to that of the first U-bend, and the third straight pipe section is parallel to the fifth straight pipe section.

Preferably, the first U-shaped bending structure further includes a third U-bend, the third U-bend includes the fifth straight pipe section, the first arc pipe section, and the sixth straight pipe section, the opening direction of the third U-bend is the same as that of the first U-bend, and the fifth straight pipe section is parallel to the sixth straight pipe section.

Preferably, a first pipe clamp is connected between the third straight pipe section and the fifth straight pipe section; and/or a second pipe clamp is connected between the fifth straight pipe section and the sixth straight pipe section.

Preferably, the first pipe clamp is provided with a mounting hole, the mounting hole is used for sleeving a liquid storage tank, and an inlet of the liquid storage tank is communicated with an outlet of the sixth straight pipe section; and/or the second straight pipe section is parallel to the fourth straight pipe section in a different-surface mode, a first included angle A is formed between the second straight pipe section and the fourth straight pipe section in a projection mode on any radial plane of the third straight pipe section, and A is larger than or equal to 90 degrees and smaller than or equal to 150 degrees.

Preferably, a hose section is arranged in the first branch suction pipe and/or the second branch suction pipe.

Preferably, the second suction branch pipe comprises a plurality of second U-shaped bent structures; and/or the suction manifold comprises a plurality of third U-shaped bent structures.

Preferably, the second U-shaped bending structure includes a fourth U-bend, the fourth U-bend includes a seventh straight pipe section, a second arc pipe section, and an eighth straight pipe section, the seventh straight pipe section is parallel to the eighth straight pipe section, and the opening direction of the fourth U-bend is the same as that of the first U-bend; and/or the third U-shaped bending structure comprises a fifth U-shaped bend, the fifth U-shaped bend comprises a ninth straight pipe section, a tenth straight pipe section and an eleventh straight pipe section, the ninth straight pipe section is parallel to the eleventh straight pipe section, and the opening direction of the fifth U-shaped bend is opposite to that of the first U-shaped bend.

Preferably, a third pipe clamp is connected between the seventh straight pipe section and the eighth straight pipe section; and/or a fourth pipe clamp is connected to the tenth pipe section.

Preferably, the fourth pipe clamp is connected with an external fixing carrier through a fixing bracket; and/or the eighth straight pipe section is communicated with the flow divider through a twelfth straight pipe section and a thirteenth straight pipe section, a second included angle B is formed between the twelfth straight pipe section and the second arc pipe section in a projection mode on any radial plane of the eighth straight pipe section, and B is larger than or equal to 90 degrees and smaller than or equal to 150 degrees.

Preferably, a fifth pipe clamp is connected to the twelfth straight pipe section.

The invention also provides a double-rotor compressor system which comprises the air suction pipe assembly.

Preferably, when the air suction pipe assembly comprises a first pipe clamp and the first pipe clamp is provided with a mounting hole, a liquid storage tank is fixedly connected in the mounting hole, and a vibration isolation layer is arranged between an outer shell of the liquid storage tank and the mounting hole.

The invention also provides an air conditioner which comprises the dual-rotor compressor system.

According to the air suction pipe assembly, the dual-rotor compressor system and the air conditioner, the rigid pipe is adopted to replace a steel woven hose adopted in the prior art, meanwhile, the total length of a pipeline is increased by arranging the plurality of first U-shaped bending structures on the first air suction branch pipe, and according to Hooke's law, the longer the pipeline length is, the smaller the rigidity is, and the greater the flexibility is, so that the technical scheme provided by the invention has the advantages of low cost and small strain.

Drawings

FIG. 1 is a schematic view of a getter tube assembly according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic structural view of a suction pipe assembly according to another embodiment of the present invention.

The reference numerals are represented as:

21. a first straight pipe section; 22. a second straight tube section; 23. a third straight tube section; 24. a fourth straight tube section; 25. A fifth straight tube section; 26. a first arc pipe section; 27. a sixth straight tube section; 28. a seventh straight tube section; 29. a second arc pipe section; 30. an eighth straight tube section; 31. a ninth straight tube section; 32. a tenth straight tube section; 33. an eleventh straight tube section; 34. a twelfth straight tube section; 35. a thirteenth straight tube section; 4. a flow divider; 51. a first pipe clamp; 511. mounting holes; 52. a second pipe clamp; 53. a third pipe clamp; 54. a fourth pipe clamp; 55. fixing a bracket; 56. a fifth pipe clamp; 6. a hose section; 100. a liquid storage tank.

Detailed Description

Referring to fig. 1 to 3 in combination, according to an embodiment of the present invention, there is provided a suction pipe assembly, which includes a suction manifold, a first suction branch pipe, and a second suction branch pipe, the suction manifold is communicated with the first suction branch pipe and the second suction branch pipe through a flow divider 4, the first suction branch pipe and/or the second suction branch pipe is a rigid pipe, and the first suction branch pipe includes a plurality of first U-shaped bent structures. According to the technical scheme, the hard tube is adopted to replace a steel woven hose adopted in the prior art, meanwhile, the total length of the pipeline is increased by arranging the plurality of first U-shaped bending structures on the first air suction branch pipe, and according to Hooke's law, the longer the pipeline is, the smaller the rigidity is, and the greater the flexibility is, so that the technical scheme provided by the invention has the advantages of low cost and small strain.

Specifically, the first U-shaped bending structure includes a first U-bend, the first U-bend includes a first straight pipe section 21, a second straight pipe section 22, and a third straight pipe section 23, wherein the first straight pipe section 21 is parallel to the third straight pipe section 23, a right angle is formed between the first straight pipe section 21 and the second straight pipe section 22, a right angle is formed between the second straight pipe section 22 and the third straight pipe section 23, an arc transition is formed between the first straight pipe section 21 and the second straight pipe section 22, and an arc transition is formed between the second straight pipe section 22 and the third straight pipe section 23. The arc transition can prevent the stress concentration phenomenon between two adjacent straight pipe sections during bending, and the flexibility of the first air suction branch pipe can be improved due to the design of the first U-shaped bend.

Further, the first U-shaped bent structure further comprises a second U-bend, the second U-bend comprises a third straight pipe section 23, a fourth straight pipe section 24 and a fifth straight pipe section 25, the opening direction of the second U-bend is opposite to that of the first U-bend, and the third straight pipe section 23 is parallel to the fifth straight pipe section 25. Furthermore, the first U-shaped bending structure further includes a third U-bend, the third U-bend includes the fifth straight pipe section 25, the first arc pipe section 26, and the sixth straight pipe section 27, the opening direction of the third U-bend is the same as that of the first U-bend, and the fifth straight pipe section 25 is parallel to the sixth straight pipe section 27. The design of the first U-bend, the second U-bend and the third U-bend improves the flexibility of the first air suction branch pipe together, and it can be understood that the flexibility of the first air suction branch pipe does not significantly reduce the rigidity of the first air suction branch pipe due to the fact that the first air suction branch pipe is a hard pipe, and the improvement of the flexibility is obviously beneficial to reducing the strain of the first air suction branch pipe.

In some embodiments, a first tube clamp 51 is connected between the third straight tube section 23 and the fifth straight tube section 25; and/or a second pipe clamp 52 is connected between the fifth straight pipe section 25 and the sixth straight pipe section 27, and the strain of the second U-bend and the strain of the third U-bend can be restrained by the first pipe clamp 51 and the second pipe clamp 52, so that the deformation at the second U-bend or the third U-bend is further reduced.

Further, the first pipe clamp 51 is provided with a mounting hole 511, the mounting hole 511 is used for sleeving the liquid storage tank 100, an inlet of the liquid storage tank 100 is communicated with an outlet of the sixth straight pipe section 27, and at this time, the liquid storage tank 100 and the first air suction branch pipe can form a whole through the first pipe clamp 51, so that deformation of the related pipelines is effectively reduced; and/or the second straight tube section 22 and the fourth straight tube section 24 are in parallel in different planes, and a first included angle a is formed between the second straight tube section 22 and the fourth straight tube section 24 in a projection on any radial plane of the third straight tube section 23, wherein a is more than or equal to 90 degrees and less than or equal to 150 degrees, and preferably, a is 125 degrees. Preferably, the first branch air intake pipe and/or the second branch air intake pipe is provided with a hose section 6, so that the flexibility of the first branch air intake pipe or the second branch air intake pipe at a certain position is increased, which is beneficial for compensating the displacement of the first branch air intake pipe or the second branch air intake pipe, for example, when the liquid storage tank 100 is assembled in the mounting hole 511, the hose section 6 can be arranged at a position near the end of the first branch air intake pipe to vent air, so that the connection between the end of the first branch air intake pipe and the liquid storage tank 100 can be more convenient.

Similar to the design of the first branch suction pipe, the second branch suction pipe comprises a plurality of second U-shaped bent structures; and/or the suction manifold comprises a plurality of third U-shaped bent structures, so that the deformation of the corresponding pipeline can be reduced through the corresponding bent structures.

Specifically, the second U-shaped bending structure includes a fourth U-bend, the fourth U-bend includes a seventh straight pipe section 28, a second arc pipe section 29, and an eighth straight pipe section 30, the seventh straight pipe section 28 is parallel to the eighth straight pipe section 30, and the opening direction of the fourth U-bend is the same as that of the first U-bend; and/or the third U-shaped bending structure comprises a fifth U-shaped bend, the fifth U-shaped bend comprises a ninth straight pipe section 31, a tenth straight pipe section 32 and an eleventh straight pipe section 33, the ninth straight pipe section 31 is parallel to the eleventh straight pipe section 33, and the opening direction of the fifth U-shaped bend is opposite to that of the first U-shaped bend. At this time, a third pipe clamp 53 is connected between the seventh straight pipe section 28 and the eighth straight pipe section 30; and/or a fourth pipe clamp 54 is connected to the tenth pipe section 32, so that the corresponding pipeline can be constrained by the design of the third pipe clamp 53 and the fourth pipe clamp 54, and further the deformation of the pipeline is reduced.

The fourth pipe clamp 54 is connected with an external fixing carrier (e.g. a bottom plate) through a fixing bracket 55, and the fixing bracket 55 may be formed by bending a sheet metal, for example, and can effectively restrain the suction manifold through the fourth pipe clamp 54; and/or the eighth straight pipe section 30 is communicated with the flow divider 4 through a twelfth straight pipe section 34 and a thirteenth straight pipe section 35, and a second included angle B is formed between the twelfth straight pipe section 34 and the second circular arc pipe section 29 in a projection on any radial plane of the eighth straight pipe section 30, wherein B is greater than or equal to 90 degrees and less than or equal to 150 degrees, and preferably, B is greater than or equal to 110 degrees. Further, a fifth pipe clamp 56 is connected to the twelfth straight pipe section 34. In a preferred embodiment, the first pipe clamp 51, the second pipe clamp 52, the third pipe clamp 53, the fourth pipe clamp 54 and/or the fifth pipe clamp 56 are made of rubber, so that certain flexibility can be ensured.

In order to verify the effectiveness of the technical scheme of the invention on the reduction of suction strain, the inventor simulates a parallel double-rotor compressor system adopting the technical scheme of the invention, and the result shows that after the design scheme of the invention is adopted, the mode shape of the original suction main pipe is 59.7Hz, and the mode shape of the suction main pipe is 46.3Hz, and compared with the original suction pipe assembly, the pipeline vibration stress on the suction pipe assembly is greatly improved.

According to an embodiment of the present invention, there is also provided a dual-rotor compressor system, including a suction pipe assembly, wherein the suction pipe assembly is the above-mentioned suction pipe assembly. When the suction pipe assembly comprises the first pipe clamp 51 and the first pipe clamp 51 is provided with the mounting hole 511, the liquid storage tank 100 is fixedly connected in the mounting hole 511, and a vibration isolation layer is arranged between the outer shell of the liquid storage tank 100 and the mounting hole 511, wherein the vibration isolation layer can be made of, for example, cement, soundproof cotton, and the like. Specifically, the vibration isolation layer can wrap the outer peripheral wall of the liquid storage tank 100, so that the tangential vibration of the liquid storage tank can be reduced, and the vibration and the stress of the air suction pipe can be reduced.

According to an embodiment of the invention, an air conditioner is also provided, which comprises the dual-rotor compressor system.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The suction pipe assembly is characterized by comprising a suction main pipe, a first suction branch pipe and a second suction branch pipe, wherein the suction main pipe is communicated with the first suction branch pipe and the second suction branch pipe through a flow divider (4), the first suction branch pipe and/or the second suction branch pipe are/is a hard pipe, and the first suction branch pipe comprises a plurality of first U-shaped bending structures.

2. The air suction pipe assembly according to claim 1, wherein the first U-shaped bent structure comprises a first U-turn, the first U-turn comprises a first straight pipe section (21), a second straight pipe section (22) and a third straight pipe section (23), wherein the first straight pipe section (21) and the third straight pipe section (23) are parallel, a right angle is formed between the first straight pipe section (21) and the second straight pipe section (22), a right angle is formed between the second straight pipe section (22) and the third straight pipe section (23), an arc transition is formed between the first straight pipe section (21) and the second straight pipe section (22), and an arc transition is formed between the second straight pipe section (22) and the third straight pipe section (23).

3. A suction pipe assembly according to claim 2, characterized in that said first U-bend further comprises a second U-bend comprising said third (23), fourth (24) and fifth (25) straight pipe sections, said second U-bend opening in the opposite direction to said first U-bend and said third (23) and fifth (25) straight pipe sections being parallel.

4. The suction tube assembly as claimed in claim 3, wherein the first U-bend structure further comprises a third U-bend, the third U-bend comprises the fifth straight tube section (25), the first circular arc tube section (26) and a sixth straight tube section (27), the third U-bend has the same opening direction as the first U-bend, and the fifth straight tube section (25) is parallel to the sixth straight tube section (27).

5. The suction tube assembly as claimed in claim 4, characterized in that a first tube clamp (51) is connected between the third straight tube section (23) and the fifth straight tube section (25); and/or a second pipe clamp (52) is connected between the fifth straight pipe section (25) and the sixth straight pipe section (27).

6. The suction pipe assembly according to claim 5, characterized in that the first pipe clamp (51) is configured with a mounting hole (511), the mounting hole (511) is used for sleeving a liquid storage tank (100), and an inlet of the liquid storage tank (100) is communicated with an outlet of the sixth straight pipe section (27); and/or the second straight pipe section (22) and the fourth straight pipe section (24) are in a non-coplanar parallel manner, and a first included angle A is formed between the second straight pipe section (22) and the fourth straight pipe section (24) in a projection on any radial plane of the third straight pipe section (23), wherein A is more than or equal to 90 degrees and less than or equal to 150 degrees.

7. The suction pipe assembly according to claim 1, wherein a hose section (6) is provided in the first and/or second suction branch pipe.

8. The suction tube assembly as set forth in claim 2, wherein said second suction manifold includes a plurality of second U-bend structures; and/or the suction manifold comprises a plurality of third U-shaped bent structures.

9. The suction tube assembly as claimed in claim 8, wherein the second U-bend structure comprises a fourth U-bend, the fourth U-bend comprises a seventh straight tube section (28), a second circular arc tube section (29), and an eighth straight tube section (30), the seventh straight tube section (28) is parallel to the eighth straight tube section (30), and the fourth U-bend has the same opening direction as the first U-bend; and/or the third U-shaped bending structure comprises a fifth U-shaped bend, the fifth U-shaped bend comprises a ninth straight pipe section (31), a tenth straight pipe section (32) and an eleventh straight pipe section (33), the ninth straight pipe section (31) is parallel to the eleventh straight pipe section (33), and the opening direction of the fifth U-shaped bend is opposite to that of the first U-shaped bend.

10. A suction pipe assembly according to claim 9, characterized in that a third pipe clamp (53) is connected between the seventh straight pipe section (28) and the eighth straight pipe section (30); and/or a fourth pipe clamp (54) is connected to the tenth pipe section (32).

11. A suction pipe assembly according to claim 10, characterized in that the fourth pipe clamp (54) is connected with an external fixing carrier by a fixing bracket (55); and/or the eighth straight pipe section (30) is communicated with the flow divider (4) through a twelfth straight pipe section (34) and a thirteenth straight pipe section (35), a second included angle B is formed between the twelfth straight pipe section (34) and the second arc pipe section (29) in a projection on any radial plane of the eighth straight pipe section (30), and B is more than or equal to 90 degrees and less than or equal to 150 degrees.

12. The suction duct assembly of claim 11, wherein a fifth pipe clamp (56) is connected to the twelfth straight pipe section (34).

13. A dual rotor compressor system comprising a suction pipe assembly, wherein the suction pipe assembly is as claimed in any one of claims 1 to 12.

14. The dual rotor compressor system as claimed in claim 13, wherein when the suction pipe assembly includes a first pipe clamp (51) and a mounting hole (511) is formed on the first pipe clamp (51), a liquid storage tank (100) is fixedly connected to the inside of the mounting hole (511), and a vibration isolation layer is disposed between a housing of the liquid storage tank (100) and the mounting hole (511).

15. An air conditioner comprising a dual-rotor compressor system, wherein the dual-rotor compressor system is the dual-rotor compressor system of claim 13 or 14.