A vacuum pump muffler structure

Abstract

The utility model discloses a vacuum pump silencer structure, including the silencer main part, the one end of silencer main part is equipped with the air inlet pipe, and the other end of silencer main part is equipped with the air outlet pipe, the outside middle piece of silencer main part is fixed with a plurality of radiating fins in equal interval, the both sides of the outside of silencer main part are equipped with a water cooling heat sink, the top of water cooling heat sink is equipped with the water injection opening, and the bottom of water cooling heat sink is equipped with the drain, one side of water cooling heat sink is fixed with the mounting foot, the outside middle piece of silencer main part is fixed with a plurality of radiating fins in equal interval, can cool down silencer main part through a plurality of radiating fins, simultaneously, the both sides of the outside of silencer main part are installed with a detachable water cooling heat sink, can enhance the cooling effect of silencer main part through water cooling heat sink, and water cooling heat sink can be added or removed according to use condition.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump silencer technology, specifically a vacuum pump silencer structure. Background Technology

[0002] A vacuum pump is a rotary variable volume gas transfer pump, including dry screw vacuum pumps, water ring pumps, reciprocating pumps, slide valve pumps, rotary vane pumps, Roots pumps, and diffusion pumps. It features high pumping speed over a wide pressure range and is widely used in industries such as metallurgy, chemical industry, food industry, and electronic coating.

[0003] For vacuum pumps used in factories, the gas being pumped often contains impurities. During operation, these impurities can clog the filter, or excessive suction force can generate significant noise. Prolonged exposure to this high-noise environment can negatively impact the physical and mental health of workers. Therefore, vacuum pump silencers are typically installed at the inlet and outlet to reduce noise. However, during extended operation, the silencer's outer surface can develop high temperatures, posing a potential safety hazard, which urgently needs to be addressed. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum pump silencer structure to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum pump silencer structure, comprising a silencer body, an air inlet pipe at one end of the silencer body, an air outlet pipe at the other end of the silencer body, a plurality of heat dissipation fins fixed at equal intervals on the outer middle section of the silencer body, a water-cooled heat dissipation device on each of the outer sides of the silencer body, a water inlet at the top of the water-cooled heat dissipation device, a drain outlet at the bottom of the water-cooled heat dissipation device, and a mounting foot fixed on one side of the water-cooled heat dissipation device, with screw holes opened on the mounting foot.

[0006] Preferably, the muffler body is composed of an outer shell and an inner shell disposed inside the outer shell, and the inner shell and the outer shell are arranged on the same axis, and the gap between the inner shell and the outer shell is filled with sound-absorbing material.

[0007] Preferably, two partitions are fixed on the inner side of the inner shell, which divide the inner space of the inner shell into three chambers of equal size. The air inlet pipe extends into the inner side of the inner shell and passes through the two partitions, and the end of the air inlet pipe is connected to the chamber located on the side. The air outlet pipe extends into the inner side of the inner shell and passes through the two partitions, and the end of the air outlet pipe is connected to the chamber located on the other side. Multiple convection holes are evenly opened on the surface of the air inlet pipe and the air outlet pipe located in the middle chamber. Ventilation openings are opened on the partitions.

[0008] Preferably, the heat dissipation fins are provided with multiple ventilation holes at equal intervals, and a limiting protrusion is fixed on the other side of the water-cooled heat dissipation device, wherein the limiting protrusion and the ventilation holes are in clearance fit.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the outer middle section of the muffler body of this utility model has multiple heat dissipation fins fixed at equal intervals, which can cool the muffler body. At the same time, a detachable water cooling heat dissipation device is installed on each of the outer sides of the muffler body. The water cooling heat dissipation device can enhance the cooling effect of the muffler body. The water cooling heat dissipation device can be added or removed according to the usage.

[0010] This utility model can reduce the airflow speed through the partition and the ventilation holes on the partition, thereby achieving the purpose of noise reduction. At the same time, multiple convection holes are evenly opened on the surface of the air inlet pipe and the air outlet pipe located between the two partitions. Air convection can be formed through the convection holes, thereby achieving the purpose of noise reduction.

[0011] Multiple ventilation holes are evenly spaced on the heat dissipation fins. These ventilation holes enhance the heat dissipation efficiency of the heat dissipation fins. The limiting protrusions on the water-cooled heat dissipation device, in conjunction with the ventilation holes, make the installation of the water-cooled heat dissipation device more secure. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0015] In the diagram: 1. Silencer body; 2. Air inlet pipe; 3. Water cooling device; 4. Heat dissipation fins; 5. Ventilation hole; 6. Air outlet pipe; 7. Outer shell; 8. Inner shell; 9. Water inlet; 10. Drain outlet; 11. Limiting protrusion; 12. Partition plate; 13. Convection hole; 14. Ventilation opening; 15. Mounting foot. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] Please see Figure 1-2 In this embodiment of the utility model, a vacuum pump silencer structure includes a silencer body 1, an air inlet pipe 2 at one end of the silencer body 1, an air outlet pipe 6 at the other end of the silencer body 1, multiple heat dissipation fins 4 fixed at equal intervals on the outer middle section of the silencer body 1, a water-cooled heat dissipation device 3 on each of the outer sides of the silencer body 1, a water inlet 9 at the top of the water-cooled heat dissipation device 3, a drain outlet 10 at the bottom of the water-cooled heat dissipation device 3, and a mounting foot 15 fixed on one side of the water-cooled heat dissipation device 3 with screw holes. The multiple heat dissipation fins 4 can cool the silencer body 1. At the same time, a detachable water-cooled heat dissipation device 3 is installed on each of the outer sides of the silencer body 1. The water-cooled heat dissipation device 3 can enhance the cooling effect of the silencer body 1. The water-cooled heat dissipation device 3 can be added or removed according to the usage.

[0018] The muffler body 1 consists of an outer shell 7 and an inner shell 8 disposed inside the outer shell 7. The inner shell 8 and the outer shell 7 are coaxially arranged, and the gap between the inner shell 8 and the outer shell 7 is filled with sound-absorbing material.

[0019] Two partitions 12 are fixed to the inner side of the inner shell 8, dividing the inner space of the inner shell 8 into three chambers of equal size. The air inlet pipe 2 extends into the inner side of the inner shell 8 and passes through the two partitions 12, and the end of the air inlet pipe 2 is connected to the chamber located on the side. The air outlet pipe 6 extends into the inner side of the inner shell 8 and passes through the two partitions 12, and the end of the air outlet pipe 6 is connected to the chamber located on the other side. Multiple convection holes 13 are evenly opened on the surface of the air inlet pipe 2 and the air outlet pipe 6 located in the middle chamber. Ventilation openings 14 are opened on the partitions 12. Through the partitions 12 and the ventilation openings 14 on the partitions 12, the air flow speed can be reduced, thereby achieving the purpose of noise reduction. At the same time, multiple convection holes 13 are evenly opened on the surface of the air inlet pipe 2 and the air outlet pipe 6 located between the two partitions 12. Air convection can be formed through the convection holes 13, thereby achieving the purpose of noise reduction.

[0020] Multiple ventilation holes 5 are evenly spaced on the heat dissipation fins 4. A limiting protrusion 11 is fixed on the other side of the water-cooled heat dissipation device 3. The limiting protrusion 11 and the ventilation holes 5 are in clearance fit. The heat dissipation efficiency of the heat dissipation fins 4 can be enhanced through the ventilation holes 5. The installation of the water-cooled heat dissipation device 3 can be more secure through the combination of the limiting protrusion 11 and the ventilation holes 5.

[0021] The working principle of this utility model is as follows: Multiple heat dissipation fins 4 are fixed at equal intervals on the outer middle section of the muffler body 1. The multiple heat dissipation fins 4 can cool down the muffler body 1. At the same time, a detachable water cooling heat dissipation device 3 is installed on each of the outer sides of the muffler body 1. The water cooling heat dissipation device 3 can enhance the cooling effect on the muffler body 1. The water cooling heat dissipation device 3 can be added or removed according to the usage.

[0022] This utility model can reduce the airflow speed through the partition 12 and the ventilation opening 14 on the partition 12, thereby achieving the purpose of noise reduction. At the same time, multiple convection holes 13 are evenly opened on the surface of the air inlet pipe 2 and the air outlet pipe 6 located between the two partitions 12. Air convection can be formed through the convection holes 13, thereby achieving the purpose of noise reduction.

[0023] Multiple ventilation holes 5 are evenly spaced on the heat dissipation fins 4. The ventilation holes 5 can enhance the heat dissipation efficiency of the heat dissipation fins 4. The limiting protrusion 11 on the water cooling heat dissipation device 3, in conjunction with the ventilation holes 5, can make the installation of the water cooling heat dissipation device 3 more secure.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum pump silencer structure, comprising a silencer body (1), wherein one end of the silencer body (1) is provided with an air inlet pipe (2), and the other end of the silencer body (1) is provided with an air outlet pipe (6), characterized in that: Multiple heat dissipation fins (4) are fixed at equal intervals on the outer middle section of the muffler body (1). A water-cooled heat dissipation device (3) is provided on each side of the outer side of the muffler body (1). A water inlet (9) is provided on the top of the water-cooled heat dissipation device (3). A drain outlet (10) is provided on the bottom of the water-cooled heat dissipation device (3). A mounting foot (15) is fixed on one side of the water-cooled heat dissipation device (3). A screw hole is provided on the mounting foot (15).

2. The vacuum pump silencer structure according to claim 1, characterized in that: The silencer body (1) consists of an outer shell (7) and an inner shell (8) disposed inside the outer shell (7), and the inner shell (8) and the outer shell (7) are arranged on the same axis. The gap between the inner shell (8) and the outer shell (7) is filled with sound-absorbing material.

3. The vacuum pump silencer structure according to claim 2, characterized in that: Two partitions (12) are fixed on the inner side of the inner shell (8). The two partitions (12) divide the inner space of the inner shell (8) into three chambers of equal size. The air inlet pipe (2) extends into the inner side of the inner shell (8) and passes through the two partitions (12). The end of the air inlet pipe (2) is connected to the chamber located on the side. The air outlet pipe (6) extends into the inner side of the inner shell (8) and passes through the two partitions (12). The end of the air outlet pipe (6) is connected to the chamber located on the other side. Multiple convection holes (13) are evenly opened on the surface of the air inlet pipe (2) and the air outlet pipe (6) located in the middle chamber. Ventilation openings (14) are opened on the partitions (12).

4. The vacuum pump silencer structure according to claim 1, characterized in that: The heat dissipation fins (4) are provided with multiple ventilation holes (5) at equal intervals. The other side of the water-cooled heat dissipation device (3) is fixed with a limiting protrusion (11), and the limiting protrusion (11) and the ventilation holes (5) are in clearance fit.

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