Exhaust silencer of air compressor
By designing a spiral spiral pipe and energy-consuming block exhaust silence device in the air compressor, combining the silence cotton and elastic connecting rod, the problem of poor exhaust silence effect in the prior art is solved, and the equipment is not added The noise reduction function of the sound silence effect is significantly improved under the condition of length.
Patent Information
- Application Number
- CN202420661663.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Existing air compressors have poor exhaust silencing effects, and commonly used methods increase the airflow residence time by extending the exhaust pipe, resulting in a large space occupied by the equipment.
An exhaust silencer device including an intake pipe, a silence pipe and an exhaust pipe is designed. The silencer pipe is composed of a spiral pipe that rotates with each other, which is arranged around the intake pipe and the exhaust pipe, and the energy consumption block is arranged at the middle interval and at the same time. The housing is equipped with a muffler and elastic connecting rod to enhance muffling effect.
Without increasing the overall length, the length of the silence pipe is extended, the silence effect is significantly improved through the airflow resonance and the action of the energy-consuming block, and further reduce noise through the silence cotton and elastic connecting rod to achieve effective noise reduction function.
Smart Images
Figure CN222185044U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air compressors, in particular to an exhaust silencing device for air compressors. Background Art
[0002] An air compressor is a device used to compress gas. During the operation of the air compressor, exhaust is required, and airflow noise will be generated during exhaust. This is because the gas flow rate is too fast and produces noise due to friction with the surrounding environment. Most of the current exhaust pipes have simple structures. They use high-strength pipes to withstand the airflow pressure, but they cannot effectively reduce the exhaust noise. Of course, there are also energy-consuming structures set up in the exhaust pipes to effectively reduce the exhaust noise. However, in order for the above technical solutions to achieve effective silencing, the airflow still needs to stay in the exhaust pipe for a sufficient time to achieve the effect. The common practice is to lengthen the exhaust pipe, so that the airflow stays in the exhaust pipe for a longer time. Although the cost is low, it takes up a lot of space. Utility Model Content
[0003] Based on this, in order to solve the problem of poor exhaust silencing effect of existing air compressors, the utility model provides an air compressor exhaust silencing device, and its specific technical solution is as follows:
[0004] An air compressor exhaust silencer device comprises an intake pipe, a silencer duct and an exhaust pipe connected in sequence, the intake pipe and the exhaust pipe are arranged adjacent to each other, the silencer duct comprises a first spiral tube and a second spiral tube screwed together, one end of the first spiral tube is connected to the intake pipe, the other end of the first spiral tube is connected to one end of the second spiral tube, the other end of the second spiral tube is connected to the exhaust pipe, and the silencer duct is arranged around the intake pipe and the exhaust pipe.
[0005] The above-mentioned air compressor exhaust silencer device, by arranging a silencer pipe around the intake pipe and the exhaust pipe, realizes that the length of the silencer pipe is increased without increasing the overall length, thereby ensuring sufficient silencer time to achieve the silencer effect. At the same time, the airflow in the silencer pipe can also resonate and consume energy with the airflow in the intake pipe and the exhaust pipe, thereby further improving the silencer effect, and has good practicality.
[0006] Furthermore, a plurality of energy dissipation blocks are arranged in a staggered manner between the first spiral tube and the second spiral tube.
[0007] Furthermore, the energy dissipation block is arranged at an inclination, and the inclination direction of the energy dissipation block is opposite to the flow direction of the airflow.
[0008] Furthermore, the cross-sectional shape of the energy dissipation block includes an arc segment arranged on the upstream airflow surface and a straight line segment arranged on the rear airflow surface.
[0009] Furthermore, the angle between the straight line segment and the direction of one side of the oncoming airflow is 45°-60°.
[0010] Furthermore, the air compressor exhaust silencer device also includes a shell, and the air intake pipe, the silencer pipe and the exhaust pipe are all arranged in the shell.
[0011] Furthermore, the air inlet of the air inlet pipe is perpendicular to the length direction of the air inlet pipe, the exhaust port of the exhaust pipe is perpendicular to the length direction of the exhaust pipe, and the opening directions of the air inlet and the exhaust port are opposite.
[0012] Furthermore, the shell is provided with silencer cotton for wrapping the air intake pipe, the silencer pipe and the exhaust pipe.
[0013] Furthermore, the shell includes an inner shell and an outer shell, the air inlet pipe, the silencer pipe, the exhaust pipe and the silencer cotton are all arranged in the inner shell, and the outer shell is sleeved outside the inner shell. The outer shell is provided with a notch for adapting to the exhaust port and the air inlet, and the exhaust port and the air inlet are respectively adapted to the notch for sealing and fixed connection.
[0014] Furthermore, an elastic connecting rod is connected between the outer shell and the inner shell.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. By arranging the silencer pipe around the intake pipe and the exhaust pipe, the length of the silencer pipe is increased without increasing the overall length, thereby ensuring a sufficient silencer time to achieve a silencer effect.
[0017] 2. At the same time, the existence of the silencer pipe forms a enclosure around the intake pipe and the exhaust pipe. The airflow in the silencer pipe can also resonate and consume energy with the airflow in the intake pipe and the exhaust pipe, thereby further improving the silencer effect.
[0018] 3. The sound-absorbing effect can be further improved by setting energy-absorbing blocks with sound-absorbing cotton. At the same time, the presence of elastic connecting rods can effectively reduce the vibration caused by the airflow hitting the inner shell, thereby further reducing the sound energy, thereby achieving the noise reduction function. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.
[0020] Figure 1 It is a structural schematic diagram of an air compressor exhaust silencer in an embodiment of the utility model.
[0021] Figure 2 It is a structural schematic diagram of one side of an air compressor exhaust silencer in an embodiment of the utility model.
[0022] Figure 3 It is a structural schematic diagram of the other side of an air compressor exhaust silencer in an embodiment of the utility model.
[0023] Figure 4 It is a structural schematic diagram of an energy dissipation block of an air compressor exhaust silencer in an embodiment of the utility model.
[0024] Figure 5 It is a structural schematic diagram of an air compressor exhaust silencer in another embodiment of the utility model.
[0025] Description of reference numerals:
[0026] 1. Intake pipe; 2. First spiral pipe; 3. Second spiral pipe; 4. Exhaust pipe; 5. Energy dissipation block; 6. Silence cotton; 7. Intake port; 8. Exhaust port; 9. Outer shell; 10. Inner shell; 11. Elastic connecting rod. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0029] refer to Figure 1 , Figure 2 as well as Figure 3As shown, the utility model is an air compressor exhaust silencer device, comprising an intake pipe 1, a silencer pipe and an exhaust pipe 4 connected in sequence, the intake pipe 1 and the exhaust pipe 4 are arranged adjacent to each other, the silencer pipe comprises a first spiral tube 2 and a second spiral tube 3 which are screwed together, one end of the first spiral tube 2 is connected to the intake pipe 1, the other end of the first spiral tube 2 is connected to one end of the second spiral tube 3, the other end of the second spiral tube 3 is connected to the exhaust pipe 4, and the silencer pipe is arranged around the intake pipe 1 and the exhaust pipe 4.
[0030] The above-mentioned air compressor exhaust silencer device, by arranging a silencer pipe around the intake pipe 1 and the exhaust pipe 4, realizes that the length of the silencer pipe is increased without increasing the overall length, thereby ensuring sufficient silencer time to achieve the silencer effect. At the same time, the silencer pipe forms an enclosure around the intake pipe 1 and the exhaust pipe 4, and the airflow in the silencer pipe can also resonate and consume energy with the airflow in the intake pipe 1 and the exhaust pipe 4, thereby further improving the silencer effect.
[0031] refer to Figure 4 As shown, in one embodiment, a plurality of energy dissipation blocks 5 are arranged in a staggered manner between the first spiral tube 2 and the second spiral tube 3 .
[0032] In one embodiment, the energy dissipation block 5 is arranged at an angle, and the inclination direction of the energy dissipation block 5 is opposite to the flow direction of the airflow.
[0033] In one embodiment, the cross-sectional shape of the energy dissipation block 5 includes an arc segment arranged on the upstream airflow surface and a straight line segment arranged on the rear airflow surface.
[0034] Specifically, when the airflow meets the energy-absorbing block 5, it will collide and disperse and converge at the same time. The arc segment has the function of guiding the dispersed part of the airflow to converge with the subsequent airflow, thereby hindering the internal friction of this part of the high-speed impacting airflow. With sufficient length provided by the first spiral tube 2 and the second spiral tube 3 and the action of multiple energy-absorbing blocks 5, the airflow velocity gradually slows down, thereby reducing the sound of friction with the inner wall of the pipe, thereby achieving silencing.
[0035] In one of the embodiments, the angle between the straight line segment and the direction of one side of the oncoming airflow is 45°-60°.
[0036] refer to Figure 5 As shown, in one of the embodiments, the air compressor exhaust silencer device further includes a shell, and the air intake pipe 1, the silencer pipe and the exhaust pipe 4 are all arranged in the shell.
[0037] In one embodiment, the air inlet 7 of the air inlet pipe 1 is perpendicular to the length direction of the air inlet pipe 1, the exhaust port 8 of the exhaust pipe 4 is perpendicular to the length direction of the exhaust pipe 4, and the opening directions of the air inlet 7 and the exhaust port 8 are opposite.
[0038] In one of the embodiments, a silencer cotton 6 for wrapping the air intake pipe 1 , the silencer pipe and the exhaust pipe 4 is disposed in the shell.
[0039] In one embodiment, the shell includes an inner shell 10 and an outer shell 9, the air inlet pipe 1, the silencer pipe, the exhaust pipe 4 and the silencer cotton 6 are all arranged in the inner shell 10, and the outer shell 9 is sleeved on the outside of the inner shell 10. The outer shell 9 is provided with a notch for adapting to the exhaust port 8 and the air inlet 7, and the exhaust port 8 and the air inlet 7 are respectively adapted to the notch for sealing and fixed connection.
[0040] In one embodiment, an elastic connecting rod 11 is connected between the outer shell 9 and the inner shell 10. Preferably, there are multiple elastic connecting rods 11 and they are arranged on the side away from the exhaust port 8 and the air inlet 7. Since the exhaust port 8 and the air inlet 7 are located on the same side, the inner shell 10 will be overweight, so that the side of the inner shell 10 away from the exhaust port 8 and the air inlet 7 will shake concentratedly. At this time, the elastic connecting rod 11 can play a supporting role and also achieve energy dissipation.
[0041] Through the above arrangement, the energy-absorbing block 5 and the sound-absorbing cotton 6 can further improve the sound-absorbing effect. Meanwhile, the presence of the elastic connecting rod 11 can effectively reduce the vibration generated by the airflow hitting the inner shell 10, thereby further reducing the sound energy, thereby achieving the noise reduction function.
[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An air compressor exhaust silencer, characterized in that: It includes an intake pipe, a silencer duct and an exhaust pipe connected in sequence, the intake pipe and the exhaust pipe are arranged adjacent to each other, the silencer duct includes a first spiral tube and a second spiral tube screwed together, one end of the first spiral tube is connected to the intake pipe, the other end of the first spiral tube is connected to one end of the second spiral tube, the other end of the second spiral tube is connected to the exhaust pipe, and the silencer duct is arranged around the intake pipe and the exhaust pipe.
2. An air compressor exhaust silencer according to claim 1, characterized in that: A plurality of energy dissipation blocks are disposed in the first spiral tube and the second spiral tube at intervals and in a staggered manner.
3. An air compressor exhaust silencer according to claim 2, characterized in that: The energy dissipation block is arranged tilted, and the tilting direction of the energy dissipation block is opposite to the flow direction of the airflow.
4. An air compressor exhaust silencer according to claim 3, characterized in that: The cross-sectional shape of the energy dissipation block includes an arc segment arranged on the upstream airflow surface and a straight line segment arranged on the rear airflow surface.
5. An air compressor exhaust silencer according to claim 4, characterized in that: The included angle between the straight line segment and the direction of one side of the oncoming airflow is 45°-60°.
6. An air compressor exhaust silencer according to claim 1, characterized in that: The air compressor exhaust silencer device also includes a shell, and the air intake pipe, the silencer pipe and the exhaust pipe are all arranged in the shell.
7. An air compressor exhaust silencer according to claim 6, characterized in that: The air inlet of the air inlet pipe is perpendicular to the length direction of the air inlet pipe, the exhaust port of the exhaust pipe is perpendicular to the length direction of the exhaust pipe, and the opening directions of the air inlet and the exhaust port are opposite.
8. An air compressor exhaust silencer according to claim 7, characterized in that: The shell is provided with silencer cotton for wrapping the air intake pipe, the silencer pipe and the exhaust pipe.
9. An air compressor exhaust silencer according to claim 8, characterized in that: The shell includes an inner shell and an outer shell. The air inlet pipe, the silencer pipe, the exhaust pipe and the silencer cotton are all arranged in the inner shell. The outer shell is sleeved outside the inner shell. A notch is opened on the outer shell for adapting to the exhaust port and the air inlet. The exhaust port and the air inlet are respectively adapted to the notch for sealing and fixed connection.
10. An air compressor exhaust silencer according to claim 9, characterized in that: An elastic connecting rod is connected between the outer shell and the inner shell.