Silencer for refrigerating system

Abstract

The utility model discloses a silencer for a refrigerating system, which comprises a shell, a silencer body, an air inlet assembly and an air outlet assembly, a flow guide assembly is arranged in the shell and divides an inner cavity of the shell into a first noise reduction cavity and a second noise reduction cavity, the flow guide assembly is provided with an inner noise reduction cavity, the flow guide assembly is provided with a first ventilation connecting pipe and a second ventilation connecting pipe, and the first ventilation connecting pipe communicates with the first noise reduction cavity and the inner noise reduction cavity; the second ventilation connecting pipe is communicated with the second noise reduction cavity and the inner noise reduction cavity. The noise reduction device is novel in structure, good in noise reduction effect, reliable to use and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of muffler, especially relates to a muffler for refrigeration system. BACKGROUND

[0002] Muffler is a kind of component used in refrigeration system, which can make airflow pass through and effectively reduce noise, mainly rely on the sound-absorbing material in the inside, can absorb the sound wave in refrigerant, to reduce noise to spread outside, there are the following defects: the residence time of refrigerant in muffler is shorter, the contact time with sound-absorbing material is limited, and the noise reduction effect is not ideal.

[0003] The prior art document (publication number: CN219624290U) discloses "a kind of muffler", also has the above technical problems. SUMMARY

[0004] The utility model aims at solving the above technical problems existing in prior art, provide a kind of muffler for refrigeration system, novel structure, good noise reduction effect, reliable in use, strong practicality.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A kind of muffler for refrigeration system, comprising: shell, the both ends of shell are respectively equipped with air inlet assembly and air outlet assembly;It is characterized by: shell is equipped with flow guide assembly, flow guide assembly divides the inner chamber of shell into first noise reduction chamber and second noise reduction chamber, flow guide assembly has inner noise reduction chamber, flow guide assembly is equipped with first air pipe and second air pipe, first air pipe is connected with first noise reduction chamber and inner noise reduction chamber, second air pipe is connected with second noise reduction chamber and inner noise reduction chamber.The muffler novel structure, good noise reduction effect, reliable in use, strong practicality.

[0007] Further, the inner wall of shell is equipped with first noise reduction layer, can effectively absorb noise and reduce sound to spread outside.

[0008] Further, the inner wall of flow guide assembly is equipped with second noise reduction layer, can effectively absorb noise and reduce sound to spread outside.

[0009] Further, flow guide assembly includes cylinder, first end cover and second end cover, first end cover and second end cover are respectively arranged at both ends of cylinder, and first end cover and second end cover are fixedly connected with the inner wall of shell by bending portion, first air pipe is arranged on first end cover, and second air pipe is arranged on second end cover.Flow guide assembly novel structure, fixedly reliable, gaseous refrigerant occurs multiple reflections, interference in inner noise reduction chamber, to reduce the generation of noise.

[0010] Further, a vacuum layer is formed between the flow guide assembly and the inner wall of the shell, which can effectively prevent sound from spreading outward and improve the sound reduction effect.

[0011] Further, the air inlet assembly comprises an air inlet pipe and a first screw joint, the first screw joint is sleeved and fixed on the air inlet pipe, and the air inlet pipe is fixed in the shell.

[0012] Further, the air outlet assembly comprises an air outlet pipe and a second screw joint, the second screw joint is sleeved and fixed on the air outlet pipe, and the air outlet pipe is fixed in the shell.

[0013] Further, the surface of the shell is coated with a phosphating layer, which improves the corrosion resistance and prolongs the service life.

[0014] The utility model discloses the following beneficial effects are obtained by adopting the above technical scheme:

[0015] The flow guide assembly disconnects the inner cavity of the shell and forms a discontinuous inner cavity structure, and the gaseous refrigerant is reflected and interfered in the discontinuous inner cavity structure, so that the noise reduction purpose is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings:

[0017] Figure 1 It is structural schematic diagram of the embodiment one of the utility model;

[0018] Figure 2 It is structural schematic diagram of the embodiment two of the utility model;

[0019] Figure 3 It is structural schematic diagram of the flow guide assembly in the embodiment two;

[0020] Figure 4 It is structural schematic diagram of the flow guide assembly and the shell connection in the embodiment two.

[0021] In the figure: 1 - shell; 2 - air inlet assembly; 3 - air inlet pipe; 4 - first screw joint; 5 - air outlet assembly; 6 - air outlet pipe; 7 - second screw joint; 8 - flow guide assembly; 9 - inner noise reduction chamber; 10 - cylinder; 11 - first end cover; 12 - second end cover; 13 - bending part; 14 - first noise reduction chamber; 15 - second noise reduction chamber; 16 - first air pipe; 17 - second air pipe; 19 - vacuum layer; 20 - first noise reduction layer; 21 - second noise reduction layer. DETAILED DESCRIPTION

[0022] As Figure 1 shown, it is the first embodiment of the utility model

[0023] A muffler for refrigeration system, it includes: shell 1, the surface of shell 1 is coated with phosphating layer, improve the corrosion resistance, not easy to be corroded in harsh environment, long service life.

[0024] The both ends of shell 1 are respectively equipped with air inlet assembly 2 and air outlet assembly 5, air inlet assembly 2 includes air inlet pipe 3 and first screw joint 4, first screw joint 4 is sleeved and fixed on air inlet pipe 3, air inlet pipe 3 is fixed with shell 1 and extends into shell 1, air outlet assembly 5 includes air outlet pipe 6 and second screw joint 7, second screw joint 7 is sleeved and fixed on air outlet pipe 6, air outlet pipe 6 is fixed with shell 1 and extends into shell 1.

[0025] Through the screw joint of first screw joint 4 and external air inlet pipe, through the screw joint of second screw joint 7 and external exhaust pipe, the installation efficiency is high, replaces the connection mode of welding, is convenient for the disassembly replacement of muffler, convenient to use.

[0026] Shell 1 is equipped with flow guide assembly 8, flow guide assembly 8 has inner noise reduction chamber 9, flow guide assembly 8 includes cylinder 10, first end cover 11 and second end cover 12, first end cover 11 and second end cover 12 are respectively equipped at both ends of cylinder 10, first end cover 11 and second end cover 12 are all fixed by welding with the inner wall of shell 1 through bending part 13, the structure is novel, and the fixation is reliable.

[0027] Flow guide assembly 8 divides the inner cavity of shell 1 into first noise reduction chamber 14 and second noise reduction chamber 15, air inlet pipe 3 is communicated with first noise reduction chamber 14, air outlet pipe 6 is communicated with second noise reduction chamber 15, first end cover 11 is equipped with first air pipe 16, second end cover 12 is equipped with second air pipe 17, first air pipe 16 communicates first noise reduction chamber 14 with inner noise reduction chamber 9, and second air pipe 17 communicates second noise reduction chamber 15 with inner noise reduction chamber 9.

[0028] The flow guide assembly 8 disconnects the inner cavity of the shell 1, forms a discontinuous inner cavity structure, and the gaseous refrigerant is reflected and interfered in the discontinuous inner cavity structure to achieve the purpose of noise reduction, specifically: the gaseous refrigerant enters the first noise reduction chamber 14 from the gas inlet pipe 3, is reflected and interfered in the first noise reduction chamber 14 for multiple times, and realizes the first noise reduction; then the gaseous refrigerant enters the inner noise reduction chamber 9 from the first air pipe 16, is reflected and interfered in the inner noise reduction chamber 9 for multiple times, and realizes the second noise reduction; then the gaseous refrigerant enters the second noise reduction chamber 15 from the second air pipe 17, is reflected and interfered in the second noise reduction chamber 15 for multiple times, and realizes the third noise reduction; the noise is reduced step by step, the noise reduction effect is good, and the gaseous refrigerant after noise reduction finally flows out through the gas outlet pipe 6.

[0029] The vacuum layer 19 is formed between the cylinder body 10 and the inner wall of the shell 1, can effectively prevent sound from being transmitted outward, and improves the noise reduction effect.

[0030] As shown in Figures 2 to 4 , it is the second embodiment of the utility model

[0031] In the technical scheme based on the first embodiment, the inner wall of the shell 1 is provided with the first noise reduction layer 20, the material of the first noise reduction layer 20 is glass fiber, the gaseous refrigerant is reflected in the first noise reduction chamber 14 and the second noise reduction chamber 15, and the glass fiber can effectively absorb noise and reduce the sound transmission outward, so that the noise reduction effect is improved.

[0032] The inner wall of the flow guide assembly 8 is provided with the second noise reduction layer 21, the material of the second noise reduction layer 21 is polyester fiber, the gaseous refrigerant is reflected in the inner noise reduction chamber 9, and the polyester fiber can effectively absorb noise and reduce the sound transmission outward, so that the noise reduction effect is improved.

[0033] The above is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to solve the basically same technical problem and realize the basically same technical effect is covered in the protection scope of the utility model.

Claims

1. A sound attenuator for a refrigeration system, comprising: The shell is provided with an air inlet assembly and an air outlet assembly at two ends respectively; characterized in that: a flow guide assembly is arranged in the shell, which divides the inner cavity of the shell into a first noise reduction chamber and a second noise reduction chamber, and has an inner noise reduction chamber; the flow guide assembly is provided with a first air passage connector and a second air passage connector; the first air passage connector connects the first noise reduction chamber with the inner noise reduction chamber; and the second air passage connector connects the second noise reduction chamber with the inner noise reduction chamber.

2. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: A first noise reduction layer is arranged on the inner wall of the shell.

3. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: A second noise reduction layer is arranged on the inner wall of the flow guide assembly.

4. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: The flow guide assembly comprises a cylinder, a first end cover and a second end cover; the first end cover and the second end cover are arranged at two ends of the cylinder respectively; the first end cover and the second end cover are fixedly connected with the inner wall of the shell through bending portions; the first air passage connector is arranged on the first end cover; and the second air passage connector is arranged on the second end cover.

5. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: A vacuum layer is formed between the flow guide assembly and the inner wall of the shell.

6. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: The air inlet assembly comprises an air inlet connector and a first screw joint; the first screw joint is sleeved and fixed on the air inlet connector; and the air inlet connector is fixed with the shell and extends into the shell.

7. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: The air outlet assembly comprises an air outlet connector and a second screw joint; the second screw joint is sleeved and fixed on the air outlet connector; and the air outlet connector is fixed with the shell and extends into the shell.

8. A sound suppressor for a refrigeration system as set forth in claim 1 wherein: The surface of the shell is coated with a phosphating layer.

Images