Damping device of air supply pipe of air conditioner refrigerating system

Abstract

The utility model relates to the technical field of air conditioners, and discloses a damping device of an air supply pipe of an air conditioner refrigerating system, which comprises a silencer, two ends of the silencer are respectively communicated with an air outlet pipe and an air supply pipe assembly, and one end of the air outlet pipe far away from the silencer is used for being communicated with a compressor. The air supplementing pipe assembly comprises a bent pipeline connected to the silencer, the end, away from the silencer, of the bent pipeline is connected with a bent pipeline extending upwards, and the end, away from the bent pipeline, of the bent pipeline is connected with an air inlet pipe with a downward opening. Through the arrangement of the over-bent pipeline and the bent pipeline, stress borne by the pipeline can be dispersed, stress concentration is avoided, the damping performance of the blowdown pipe assembly is improved, the flexibility of the blowdown pipe is improved, and the service life of the whole pipeline is prolonged; and meanwhile, the silencer is directly connected with the pipeline without other supporting structures, it can be guaranteed that the impact force received by the joint between the silencer and the pipeline during normal work is small, and the risk of cracking and leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a shock absorbing device for an air supply pipe of an air conditioning refrigeration system. Background Art

[0002] In actual use of air conditioners, the compressor is a vibrating component. The compressor with air supply and heat increase function has an air inlet, air supply and exhaust port connected to the refrigeration system. The air supply port is drawn from the compressor medium pressure chamber. Affected by the pressure pulsation of the medium pressure chamber itself and the vibration of the compressor, the air supply pipe vibrates greatly and is prone to fatigue fracture during operation. Effective pipeline shock absorption design can reduce the fatigue stress of the pipeline, greatly increase the service life of the pipeline, and improve the reliability of air conditioning products.

[0003] Patent CN217029227U proposes an air supply pipeline shock absorbing device, including a compressor, a silencer, a fixed bracket, an air supply pipe, an air outlet pipe and an air intake pipe; the air inlet of the above-mentioned silencer is connected to the air supply pipe, the air outlet pipe of the silencer is connected to the air supply port of the compressor, and the silencer adopts axial air intake and lateral air outlet; the silencer is fixed on the fixed bracket, the fixed bracket is fixedly installed on the compressor, and the air intake pipe is fixed on the fixed bracket; by connecting the air supply pipe and the silencer, the air outlet pipe of the silencer is directly connected to the air supply port of the compressor, and the silencer and the air intake pipe are fixedly connected through the fixed bracket and the compressor lifting ear, which effectively reduces the vibration of the compressor air supply pipe and the air outlet pipe, and improves the stability of the overall structure.

[0004] In the above scheme, during the actual operation, the gas is connected to other components of the refrigeration system through the air supply pipeline. There are many straight sections and a lack of shock-absorbing bends in the process, which may cause greater vibration of the pipeline. Moreover, the muffler in the above scheme is relatively fixed, while the pipeline connected to it vibrates during operation, and then there is relative displacement at the connection, which has a certain risk of leakage. The setting of the bracket also increases the manufacturing cost of the fixings. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the utility model is: how to improve the vibration reduction performance of the air supply pipeline.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The shock absorbing device of the air supply pipe of the air conditioning refrigeration system comprises a muffler, wherein both ends of the muffler are respectively connected with an air outlet pipe and an air supply pipe assembly, wherein the end of the air outlet pipe away from the muffler is used to connect with a compressor, and the air supply pipe assembly comprises a curved pipeline connected to the muffler, wherein the end of the curved pipeline away from the muffler is connected with a curved pipeline extending upward, and the end of the curved pipeline away from the curved pipeline is connected with an air intake pipe opening downward. The curved pipeline comprises a first vertical pipe connected to the lower end of the muffler, wherein the end of the first vertical pipe away from the muffler is sequentially connected with a first U-shaped pipe, a second vertical pipe, a second U-shaped pipe, a third vertical pipe, a third U-shaped pipe and a fourth vertical pipe; in the working state, the second U-shaped pipe is inverted, the ends of the first U-shaped pipe and the third U-shaped pipe are upward, and the ends of the second U-shaped pipe are downward, and the end of the fourth vertical pipe away from the third U-shaped pipe is connected with the curved pipeline extending upward.

[0008] Furthermore, the lower ends of the first U-shaped tube and the third U-shaped tube are flush with each other.

[0009] Furthermore, the second vertical pipe and the third vertical pipe have the same length.

[0010] Furthermore, the upper ends of the second U-shaped tube and the fourth vertical tube are flush with each other.

[0011] Furthermore, the lengths of the second vertical pipe and the third vertical pipe range from 200 mm to 300 mm.

[0012] Furthermore, the angle between the projections of the first U-shaped tube and the second U-shaped tube on the horizontal plane is 125°.

[0013] Furthermore, the above-mentioned bent pipeline includes a first inclined tube connected to the upper end of the above-mentioned fourth vertical pipe and extending upward, the upper end of the above-mentioned first inclined tube is sequentially connected to the fifth vertical pipe, the first bent pipe, the second inclined pipe, the second bent pipe, the third inclined pipe and the third bent pipe, and the above-mentioned third bent pipe is connected to the above-mentioned intake pipe; the above-mentioned second inclined pipe and the above-mentioned third inclined pipe are in the same horizontal plane, and the angle between the above-mentioned second inclined pipe and the above-mentioned third inclined pipe is 123°.

[0014] Furthermore, the silencer is a gourd-shaped hollow tube, and a first silencer chamber and a second silencer chamber which are interconnected are provided in the silencer.

[0015] Furthermore, the inner diameter of the first silencing chamber is the same as the inner diameter of the second silencing chamber, and the length of the first silencing chamber is smaller than the length of the second silencing chamber.

[0016] Furthermore, the muffler is made of steel.

[0017] The beneficial effects of the utility model are:

[0018] (1) The curved pipeline composed of the first vertical pipe, the first U-shaped pipe, the second vertical pipe, the second U-shaped pipe, the third vertical pipe, the third U-shaped pipe and the fourth vertical pipe can disperse the stress on the pipeline, avoid stress concentration, improve the shock absorption performance of the air supply pipe assembly, and increase the flexibility of the air supply pipe, thereby extending the life of the entire pipeline.

[0019] (2) The muffler is directly connected to the pipeline without any other supporting structure, which can ensure that the impact force received by the connection between the muffler and the pipeline during normal operation is small, reducing the risk of cracking and leakage.

[0020] (3) No additional fixing devices are added to the muffler, reducing manufacturing and after-sales costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is the front view of the utility model;

[0023] Figure 3 It is a left view of the utility model;

[0024] Figure 4 It is a top view of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the muffler of the utility model;

[0026] Marked in the figure, 1-first vertical pipe, 2-first U-shaped pipe, 3-second vertical pipe, 4-second U-shaped pipe, 5-third vertical pipe, 6-third U-shaped pipe, 7-fourth vertical pipe, 8-first inclined pipe, 9-fifth vertical pipe, 10-first bent pipe, 11-second inclined pipe, 12-second bent pipe, 13-third inclined pipe, 14-inlet pipe, 15-third bent pipe, 100-compressor, 200-exhaust pipe, 300-muffler, 301-first muffler chamber, 302-second muffler chamber. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings.

[0028] according to Figure 1-Figure 4 As shown, an embodiment of the present application proposes a shock absorbing device for an air supply pipe of an air-conditioning refrigeration system, including a muffler 300, wherein both ends of the muffler 300 are respectively connected to an air outlet pipe 200 and an air supply pipe assembly, wherein one end of the air outlet pipe 200 away from the muffler 300 is used to connect to a compressor 100, and the air supply pipe assembly includes a curved pipeline connected to the muffler 300, wherein one end of the curved pipeline away from the muffler 300 is connected to a curved pipeline extending upward, and one end of the curved pipeline away from the curved pipeline is connected to an air inlet pipe 14 opening downward.

[0029] It should be noted that the arrangement of curved pipelines and folded pipelines can disperse the stress on the pipelines, avoid stress concentration, improve the shock absorption performance of the air supply pipe assembly, and increase the flexibility of the air supply pipe, thereby extending the life of the entire pipeline; the muffler 300 is directly connected to the pipeline without any other supporting structure, which can ensure that the connection between the muffler 300 and the pipeline receives less impact force during normal operation, thereby reducing the risk of cracking and leakage; and in this embodiment, there is no need to add additional fixing devices to the muffler 300, and basic stability and shock absorption performance can be achieved, thereby reducing manufacturing and after-sales costs.

[0030] Specifically, the curved pipeline includes a first vertical pipe 1 connected to the lower end of the muffler 300, and the first vertical pipe 1 is connected to the first U-shaped pipe 2, the second vertical pipe 3, the second U-shaped pipe 4, the third vertical pipe 5, the third U-shaped pipe 6 and the fourth vertical pipe 7 in sequence at one end away from the muffler 300; and the first vertical pipe 1, the first U-shaped pipe 2, the second vertical pipe 3, the second U-shaped pipe 4, the third vertical pipe 5, the third U-shaped pipe 6 and the fourth vertical pipe 7 together constitute a wavy pipeline composed of three long U-shaped bends, so as to ensure that the gas can be fully dispersed when the pipeline receives it. stress, achieving the best shock absorption effect; in the working state, the second U-shaped tube 4 is inverted, and the lower ends of the first U-shaped tube 2 and the third U-shaped tube 6 are flush, that is, the first U-shaped tube 2 and the third U-shaped tube 6 are highly consistent with the bottom limit position of the compressor 100, and the second vertical tube 3 and the third vertical tube 5 are the same length, so that the second U-shaped tube 4, the second vertical tube 3 and the third vertical tube 5 together form a long U-shaped pipe, making the whole structure relatively symmetrical, ensuring sufficient stress release, and the overall structure is relatively stable. The upper ends of the second U-shaped tube 4 and the fourth vertical tube 7 are flush, ensuring the integrity of the structure, and the distribution of stress is more dispersed.

[0031] In this embodiment, the length range of the second vertical pipe 3 and the third vertical pipe 5 is 200 mm to 300 m, so that the upper and lower ends of the pipeline are optimally located away from the compressor 100, thereby improving the shock absorption characteristics. Preferably, the length of the second vertical pipe 3 and the third vertical pipe 5 can be selected to be 300 m.

[0032] The included angle between the projections of the first U-shaped tube and the second U-shaped tube 4 on the horizontal plane is 125°. The first U-shaped tube and the second U-shaped tube 4 form a certain included angle to ensure a surrounding trend around the compressor 100, thereby reducing the installation space.

[0033] In addition, the bent pipeline includes a first oblique tube 8 connected to the upper end of the fourth vertical tube 7 and extending upward, the upper end of the first oblique tube 8 is sequentially connected to the fifth vertical tube 9, the first curved tube 10, the second oblique tube 11, the second curved tube 12, the third oblique tube 13 and the third curved tube 15, the third curved tube 15 is connected to the intake pipe 14; the second oblique tube 11 and the third oblique tube 13 are in the same horizontal plane, and the angle between the second oblique tube 11 and the third oblique tube 13 is 123°. The second oblique tube 11 and the third oblique tube 13 form a certain angle to increase the flexibility of the pipeline, which can buffer the relative displacement of the pipeline during transportation, and at the same time, the stress on the pipeline can be dispersed at a certain angle to avoid stress concentration and improve the overall pipeline stability.

[0034] like Figure 5 As shown, the silencer 300 is a gourd-shaped hollow tube, and the silencer 300 is provided with a first silencer chamber 301 and a second silencer chamber 302 which are interconnected, and the inner diameter of the first silencer chamber 301 is the same as the inner diameter of the second silencer chamber 302, and the length of the first silencer chamber 301 is less than the length of the second silencer chamber 302. The airflow pulsation can be buffered twice in the two chambers of different lengths, and the shorter expansion chamber has a better airflow pressure equalization effect on high-frequency bands such as above 5000Hz, and the longer expansion chamber has a better airflow pressure equalization effect on low-frequency bands such as below 300Hz. The combination of the two chambers can act on airflow pulsation in a wider frequency range, so as to achieve a better shock absorption effect. Moreover, the silencer 300 is made of steel, which has high strength to ensure stability during use.

[0035] In summary, the utility model proposes a shock absorbing device for an air supply pipe of an air-conditioning refrigeration system, comprising a muffler 300, wherein both ends of the muffler 300 are respectively connected to an air outlet pipe 200 and an air supply pipe assembly, wherein the end of the air outlet pipe 200 away from the muffler 300 is used to connect to a compressor 100, and the air supply pipe assembly comprises a curved pipeline connected to the muffler 300, wherein the end of the curved pipeline away from the muffler 300 is connected to a curved pipeline extending upward, and the end of the curved pipeline away from the curved pipeline is connected to an air intake pipe 14 opening downward, which can effectively improve the shock absorbing performance of the overall air supply pipe, and the overall structure is simple without the need to add components, and is simple to process and install, thereby having good economic benefits.

Claims

1. A shock absorbing device for an air supply pipe of an air conditioning refrigeration system, comprising a muffler (300), wherein both ends of the muffler (300) are respectively connected to an air outlet pipe (200) and an air supply pipe assembly, and an end of the air outlet pipe (200) away from the muffler (300) is used to connect to a compressor (100), characterized in that: The air supply pipe assembly comprises a curved pipeline connected to the muffler (300), one end of the curved pipeline away from the muffler (300) is connected to a curved pipeline extending upward, and one end of the curved pipeline away from the curved pipeline is connected to an intake pipe (14) opening downward; The curved pipeline comprises a first vertical pipe (1) connected to the lower end of the muffler (300), and the end of the first vertical pipe (1) away from the muffler (300) is connected in sequence to a first U-shaped pipe (2), a second vertical pipe (3), a second U-shaped pipe (4), a third vertical pipe (5), a third U-shaped pipe (6) and a fourth vertical pipe (7); in a working state, both ends of the first U-shaped pipe (2) and the third U-shaped pipe (6) are upward and both ends of the second U-shaped pipe (4) are downward, and the end of the fourth vertical pipe (7) away from the third U-shaped pipe (6) is connected to the curved pipeline.

2. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1 is characterized in that: The lower ends of the first U-shaped tube (2) and the third U-shaped tube (6) are flush with each other.

3. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The second vertical pipe (3) and the third vertical pipe (5) have the same length.

4. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The upper ends of the second U-shaped tube (4) and the fourth vertical tube (7) are flush with each other.

5. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The length of the second vertical pipe (3) and the third vertical pipe (5) ranges from 200 mm to 300 mm.

6. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The included angle between the projections of the first U-shaped tube (2) and the second U-shaped tube (4) on the horizontal plane is 125°.

7. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The bent pipeline comprises a first inclined pipe (8) connected to the upper end of the fourth vertical pipe (7) and extending upwards; the upper end of the first inclined pipe (8) is connected in sequence to a fifth vertical pipe (9), a first bent pipe (10), a second inclined pipe (11), a second bent pipe (12), a third inclined pipe (13) and a third bent pipe (15); the third bent pipe (15) is connected to the air intake pipe (14); the second inclined pipe (11) and the third inclined pipe (13) are in the same horizontal plane, and the angle between the second inclined pipe (11) and the third inclined pipe (13) is 123°.

8. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The silencer (300) is a gourd-shaped hollow tube, and a first silencer chamber (301) and a second silencer chamber (302) which are interconnected are provided in the silencer (300).

9. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 8, characterized in that: The inner diameter of the first silencing chamber (301) is the same as the inner diameter of the second silencing chamber (302), and the length of the first silencing chamber (301) is shorter than the length of the second silencing chamber (302).

10. The shock absorbing device for the air supply pipe of the air conditioning refrigeration system according to claim 1, characterized in that: The muffler (300) is made of steel.

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