Generator silencer capable of guiding airflow

Abstract

The utility model relates to the technical field of silencers, in particular to a generator silencer capable of guiding airflow. The technical problems that most of existing generator silencers conduct noise reduction by guiding airflow, but in the noise reduction process, due to the fact that an inner channel and the structure of the silencer are possibly unreasonable in design, airflow is not evenly distributed in the silencer, and the noise reduction effect of the silencer is affected are solved. According to the technical scheme, the generator silencer capable of guiding the airflow comprises a silencer shell, a separation module and a flow dividing module, the airflow enters a first flow dividing pipe, flows out through a first ventilation hole, then enters a second flow dividing pipe through a second ventilation hole, then flows out of the second flow dividing pipe through the second ventilation hole, and finally enters a first flow dividing pipe through the first ventilation hole; in this way, backflow is formed between the first partition plate and the second partition plate in a circulating and reciprocating mode, in the process, the airflow speed is reduced, the noise intensity is continuously weakened, and noise reduction treatment is further conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to a muffler for a gas flow guiding generator. Background Technique

[0002] A muffler for a gas flow guiding generator is a special muffling device designed to reduce the noise generated by a generator, especially a diesel generator during operation. This muffler adopts the technology of guiding gas flow, and through a specific channel design to guide and control the discharged gas flow. At the same time, sound-absorbing materials and structures are added to it to achieve the purpose of reducing noise. Most of the existing generator mufflers reduce noise by guiding gas flow. However, in the process, due to the possible unreasonable design of the internal channels and structures of the muffler, the gas flow is unevenly distributed inside the muffler, affecting the noise reduction effect of the muffler. Therefore, we propose a muffler for a gas flow guiding generator to facilitate solving the problems raised above. Content of the Utility Model

[0003] In order to overcome the problem that most of the existing generator mufflers reduce noise by guiding gas flow. However, in the process, due to the possible unreasonable design of the internal channels and structures of the muffler, the gas flow is unevenly distributed inside the muffler, affecting the noise reduction effect of the muffler.

[0004] The technical solution of the utility model is: a muffler for a gas flow guiding generator, including a muffler housing, a partition module and a flow splitting module; a partition module for dividing the internal space of the muffler housing to make the gas flow reflect and collide multiple times is installed inside the muffler housing, and a flow splitting module for dispersing the gas flow to continuously form a backflow to reduce the kinetic energy of the gas flow is installed in the middle of the partition module.

[0005] Preferably, the gas flow enters the inside of the muffler housing along the first guide pipe through the air inlet pipe. In this process, the round holes disperse the gas flow, making the gas flow flow evenly. Then the gas flow reaches the first partition plate, and is first preliminarily noise-reduced through the first sound-absorbing round groove. Then the gas flow enters the first guide pipe, flows out through the first ventilation hole, then enters the second guide pipe through the second ventilation hole, and then flows out of the second guide pipe through the second ventilation hole, and then enters the first guide pipe through the first ventilation hole, thus forming a backflow between the first partition plate and the second partition plate in a cycle. In this process, the gas flow velocity decreases, and the noise intensity continuously weakens, and further noise reduction treatment is carried out. Finally, the gas flow flows through the first guide pipe to between the second partition plate and the third partition plate, and the gas flowing out of the first guide pipe is finally noise-reduced through the second sound-absorbing round groove. When the noise reduction is completed, the gas flow flows out along the second guide pipe through the air outlet pipe. In this process, the holes disperse the gas flow to avoid too fast gas flow velocity.

[0006] Preferably, an air inlet pipe for air flow to enter is installed at one end of the muffler housing. The outer part of the end of the air inlet pipe away from the muffler housing is sleeved with a first connecting plate for connecting with the generator. A first flow dividing pipe for dispersing the incoming air flow to make it flow evenly is sleeved inside the air inlet pipe. A plurality of groups of round holes for air flow to enter are evenly distributed on the first flow dividing pipe. The muffler housing is fixedly connected to the generator through the first connecting plate. At the same time, the muffler housing is fixedly connected to the pipeline through a second connecting plate. Then, the air flow enters the interior of the muffler housing along the first flow dividing pipe through the air inlet pipe. During this process, the round holes disperse the air flow, making the air flow flow evenly.

[0007] Preferably, an air outlet pipe for air flow to flow out is installed at the end of the muffler housing away from the air inlet pipe. The outer part of the end of the air outlet pipe away from the muffler housing is sleeved with a second connecting plate for connecting with the pipeline. A second flow dividing pipe for dispersing and flowing out the air flow after noise reduction is sleeved inside the air outlet pipe. A plurality of groups of holes for air flow to flow out are evenly distributed on the second flow dividing pipe. After the noise reduction is completed, the air flow flows out along the second flow dividing pipe through the air outlet pipe. During this process, the holes disperse the air flow to avoid too fast air flow velocity.

[0008] Preferably, the partition module includes a first partition board, a second partition board, a third partition board and a fourth partition board. The first partition board, the second partition board, the third partition board and the fourth partition board are arranged horizontally in sequence from left to right along the inner side of the muffler housing. Thus, a backflow is formed reciprocally between the first partition board and the second partition board. During this process, the air flow velocity decreases and the noise intensity continuously weakens, further performing noise reduction treatment.

[0009] Preferably, a first installation hole is opened on the first partition board. A plurality of groups of first sound absorption round grooves for absorbing noise are evenly distributed on the side of the first partition board where the first installation hole is opened. A first through hole is opened on the second partition board. A second through hole is opened on the side of the second partition board where the first through hole is opened. After all the installations are completed, when the air flow reaches the first partition board, it is first preliminarily noise-reduced through the first sound absorption round grooves, then the air flow enters the first diversion pipe, flows out through the first ventilation hole, then enters the second diversion pipe through the second ventilation hole, then flows out of the second diversion pipe from the second ventilation hole, and then enters the first diversion pipe through the first ventilation hole.

[0010] Preferably, a third through hole is opened on the third partition board. A plurality of groups of second sound absorption round grooves for absorbing noise are evenly distributed on the side of the third partition board where the third through hole is opened. A second installation hole is opened on the fourth partition board. Then, the air flow flows through the first diversion pipe to between the second partition board and the third partition board. The gas flowing out of the first diversion pipe is finally noise-reduced through the second sound absorption round grooves, then enters the second flow dividing pipe through the second ventilation hole, and then flows out of the second diversion pipe to complete the noise reduction.

[0011] Preferably, the flow splitting module includes a first diversion pipe and a second diversion pipe. The first diversion pipe is fixedly connected to the first partition plate through a first mounting hole, passes through a second through hole to be positioned and connected to the second partition plate. A plurality of groups of first ventilation holes for air flow are evenly distributed on the first diversion pipe. The second diversion pipe passes through the first through hole and the third through hole to be positioned and connected to the second partition plate and the third partition plate, and is fixedly connected to the fourth partition plate through a second mounting hole. A plurality of groups of second ventilation holes for air flow are evenly distributed on the second diversion pipe. First, fixedly connect the first diversion pipe to the first partition plate through the first mounting hole, then the first diversion pipe passes through the second through hole to be positioned and connected to the second partition plate. Then, pass the second diversion pipe through the first through hole and the third through hole to be positioned and connected to the second partition plate and the third partition plate. Finally, fixedly connect the second diversion pipe to the fourth partition plate through the second mounting hole.

[0012] Advantages of the present utility model:

[0013] 1. Different from the situation that most of the conventional generator mufflers reduce noise by guiding air flow, but in the process, due to the unreasonable design of the internal channels and structures of the muffler, the air flow is unevenly distributed inside the muffler, affecting the noise reduction effect of the muffler. The air flow enters the interior of the muffler housing along the first diversion pipe through the air inlet pipe. During this process, the round holes disperse the air flow, making the air flow evenly flow. Then the air flow reaches the first partition plate, and is initially noise-reduced through the first sound-absorbing round groove. Then the air flow enters the first diversion pipe and flows out through the first ventilation holes, then enters the second diversion pipe through the second ventilation holes, and immediately flows out of the second diversion pipe through the second ventilation holes, and then enters the first diversion pipe through the first ventilation holes. Thus, a reflux is formed between the first partition plate and the second partition plate in a cyclic manner. During this process, the air flow velocity decreases, and the noise intensity continuously weakens, and further noise reduction treatment is carried out. Finally, the air flow flows through the first diversion pipe to between the second partition plate and the third partition plate, and the gas flowing out of the first diversion pipe is finally noise-reduced through the second sound-absorbing round groove. When the noise reduction is completed, the air flow flows out along the second diversion pipe through the air outlet pipe. During this process, the holes disperse the air flow to avoid too fast air flow velocity.

[0014] 2. The muffler housing is fixedly connected to the generator through the first connecting plate, and at the same time, the muffler housing is fixedly connected to the pipeline through the second connecting plate. Then, fixedly connect the first flow splitting pipe to the first partition plate through the first mounting hole, then the first flow splitting pipe passes through the second through hole to be positioned and connected to the second partition plate. Then, pass the second flow splitting pipe through the first through hole and the third through hole to be positioned and connected to the second partition plate and the third partition plate. Finally, fixedly connect the second flow splitting pipe to the fourth partition plate through the second mounting hole. Description of the drawings

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 This is an exploded view of the overall structure of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the muffler housing of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the partition module of the present utility model.

[0019] Explanation of reference numerals: 1, muffler housing; 2, partition module; 3, shunt module; 101, air inlet pipe; 102, first connecting plate; 103, first shunt pipe; 104, air outlet pipe; 105, second connecting plate; 106, second shunt pipe; 201, first partition plate; 202, first sound-absorbing circular groove; 203, first mounting hole; 204, second partition plate; 205, first through hole; 206, second through hole; 207, third partition plate; 208, third through hole; 209, second sound-absorbing circular groove; 210, fourth partition plate; 211, second mounting hole; 301, first guide pipe; 302, first ventilation hole; 303, second guide pipe; 304, second ventilation hole. Detailed implementation manners

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Please refer to Figures 1-3 , the present utility model provides an embodiment: a muffler for a gas flow guiding generator, comprising a muffler housing 1, a partition module 2 and a shunt module 3; a partition module 2 for partitioning the internal space of the muffler housing 1 to enable the air flow to be reflected and collided multiple times is installed inside the muffler housing 1, a shunt module 3 for dispersing the air flow to continuously form a backflow so as to reduce the air flow kinetic energy is installed in the middle of the partition module 2, an air inlet pipe 101 for the air flow to enter is installed at one end of the muffler housing 1, a first connecting plate 102 for connecting with the generator is sleeved outside one end of the air inlet pipe 101 away from the muffler housing 1, a first shunt pipe 103 for dispersing the incoming air flow to make it flow evenly is sleeved inside the air inlet pipe 101, a plurality of groups of round holes for the air flow to enter are uniformly arranged on the first shunt pipe 103, an air outlet pipe 104 for the air flow to flow out is installed at one end of the muffler housing 1 away from the air inlet pipe 101, a second connecting plate 105 for connecting with the pipeline is sleeved outside one end of the air outlet pipe 104 away from the muffler housing 1, a second shunt pipe 106 for dispersing the air flow after noise reduction and flowing out is sleeved inside the air outlet pipe 104, and a plurality of groups of holes for the air flow to flow out are uniformly arranged on the second shunt pipe 106.

[0022] Please refer to Figure 4, in this embodiment, the partition module 2 includes a first partition plate 201, a second partition plate 204, a third partition plate 207, and a fourth partition plate 210. The first partition plate 201, the second partition plate 204, the third partition plate 207, and the fourth partition plate 210 are arranged horizontally in sequence from left to right along the inner side of the muffler housing 1. A first mounting hole 203 is formed in the first partition plate 201. On the side of the first partition plate 201 where the first mounting hole 203 is formed, multiple groups of first sound-absorbing circular grooves 202 for absorbing noise are evenly distributed. A first through hole 205 is formed in the second partition plate 204. A second through hole 206 is formed on the side of the second partition plate 204 where the first through hole 205 is formed. A third through hole 208 is formed in the third partition plate 207. On the side of the third partition plate 207 where the third through hole 208 is formed, multiple groups of second sound-absorbing circular grooves 209 for absorbing noise are evenly distributed. A second mounting hole 211 is formed in the fourth partition plate 210. The flow splitting module 3 includes a first flow guide pipe 301 and a second flow guide pipe 303. The first flow guide pipe 301 is fixedly connected to the first partition plate 201 through the first mounting hole 203. The first flow guide pipe 301 passes through the second through hole 206 and is positioned and connected to the second partition plate 204. Multiple groups of first ventilation holes 302 for air flow are evenly distributed on the first flow guide pipe 301. The second flow guide pipe 303 passes through the first through hole 205 and the third through hole 208 and is positioned and connected to the second partition plate 204 and the third partition plate 207. The second flow guide pipe 303 is fixedly connected to the fourth partition plate 210 through the second mounting hole 211. Multiple groups of second ventilation holes 304 for air flow are evenly distributed on the second flow guide pipe 303.

[0023] When working, the muffler housing 1 is fixedly connected to the generator through the first connecting plate 102. At the same time, the muffler housing 1 is fixedly connected to the pipeline through the second connecting plate 105. Then, the first flow splitting pipe 103 is fixedly connected to the first partition plate 201 through the first mounting hole 203. Then, the first flow splitting pipe 103 passes through the second through hole 206 and is positioned and connected to the second partition plate 204. Immediately afterwards, the second flow splitting pipe 106 passes through the first through hole 205 and the third through hole 208 and is positioned and connected to the second partition plate 204 and the third partition plate 207. Finally, the second flow splitting pipe 106 is fixedly connected to the fourth partition plate 210 through the second mounting hole 211;

[0024] After all installations are completed, the air flow enters the muffler housing 1 along the first guide pipe 301 through the air inlet pipe 101. During this process, the round holes disperse the air flow, making the air flow evenly distributed. Then the air flow reaches the first partition plate 201, and first undergoes preliminary noise reduction through the first sound-absorbing round groove 202. Then the air flow enters the first guide pipe 301 and flows out through the first ventilation hole 302, and then enters the second guide pipe 303 through the second ventilation hole 304. Immediately afterwards, it flows out of the second guide pipe 303 through the second ventilation hole 304, and then enters the first guide pipe 301 through the first ventilation hole 302. Thus, a recirculation is formed between the first partition plate 201 and the second partition plate 204. During this process, the air flow velocity decreases, and the noise intensity continuously weakens, and further noise reduction treatment is carried out. Finally, the air flow flows through the first guide pipe 301 to between the second partition plate 204 and the third partition plate 207, and the gas flowing out of the first guide pipe 301 undergoes final noise reduction through the second sound-absorbing round groove 209. When the noise reduction is completed, the air flow flows out along the second guide pipe 303 through the air outlet pipe 104. During this process, the holes disperse the air flow to prevent the air flow velocity from being too fast.

[0025] Through the above steps, the air flow enters the muffler housing 1 along the first guide pipe 301 through the air inlet pipe 101. During this process, the round holes disperse the air flow, making the air flow evenly distributed. Then the air flow reaches the first partition plate 201, and first undergoes preliminary noise reduction through the first sound-absorbing round groove 202. Then the air flow enters the first guide pipe 301 and flows out through the first ventilation hole 302, and then enters the second guide pipe 303 through the second ventilation hole 304. Immediately afterwards, it flows out of the second guide pipe 303 through the second ventilation hole 304, and then enters the first guide pipe 301 through the first ventilation hole 302. Thus, a recirculation is formed between the first partition plate 201 and the second partition plate 204. During this process, the air flow velocity decreases, and the noise intensity continuously weakens, and further noise reduction treatment is carried out. Finally, the air flow flows through the first guide pipe 301 to between the second partition plate 204 and the third partition plate 207, and the gas flowing out of the first guide pipe 301 undergoes final noise reduction through the second sound-absorbing round groove 209. When the noise reduction is completed, the air flow flows out along the second guide pipe 303 through the air outlet pipe 104. During this process, the holes disperse the air flow to prevent the air flow velocity from being too fast.

[0026] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A guided air flow generator muffler, comprising a muffler housing (1); characterized in that: It also includes a partition module (2) and a flow splitting module (3); a partition module (2) for partitioning the internal space of the muffler housing (1) to enable the air flow to be reflected and collided multiple times is installed inside the muffler housing (1), and a flow splitting module (3) for dispersing the air flow to continuously form a backflow so as to reduce the air flow kinetic energy is installed in the middle of the partition module (2). The partition module (2) includes a first partition plate (201), a second partition plate (204), a third partition plate (207) and a fourth partition plate (210). The first partition plate (201), the second partition plate (204), the third partition plate (207) and the fourth partition plate (210) are arranged horizontally in sequence from left to right along the inner side of the muffler housing (1). A first mounting hole (203) is provided on the first partition plate (201), and a plurality of groups of first sound absorption circular grooves (202) for absorbing noise are evenly distributed on one side of the first partition plate (201) where the first mounting hole (203) is provided. A first through hole (205) is provided on the second partition plate (204), and a second through hole (206) is provided on one side of the second partition plate (204) where the first through hole (205) is provided. A third through hole (208) is provided on the third partition plate (207), and a plurality of groups of second sound absorption circular grooves (209) for absorbing noise are evenly distributed on one side of the third partition plate (207) where the third through hole (208) is provided. A second mounting hole (211) is provided on the fourth partition plate (210). The flow splitting module (3) includes a first guide pipe (301) and a second guide pipe (303). The first guide pipe (301) is fixedly connected to the first partition plate (201) through the first mounting hole (203), the first guide pipe (301) passes through the second through hole (206) and is positioned and connected to the second partition plate (204), and a plurality of groups of first ventilation holes (302) for air flow passage are evenly distributed on the first guide pipe (301). The second guide pipe (303) passes through the first through hole (205) and the third through hole (208) and is positioned and connected to the second partition plate (204) and the third partition plate (207), and the second guide pipe (303) is fixedly connected to the fourth partition plate (210) through the second mounting hole (211), and a plurality of groups of second ventilation holes (304) for air flow passage are evenly distributed on the second guide pipe (303).

2. The muffler for a flow-guided air generator according to claim 1, characterized in that: An air inlet pipe (101) for air flow to enter is installed at one end of the muffler housing (1). A first connecting plate (102) for connecting to a generator is sleeved outside one end of the air inlet pipe (101) away from the muffler housing (1). A first flow splitting pipe (103) for dispersing the incoming air flow to make it flow evenly is sleeved inside the air inlet pipe (101), and a plurality of groups of round holes for air flow to enter are evenly distributed on the first flow splitting pipe (103).

3. The air flow guiding type generator muffler according to claim 2, wherein: One end of the muffler housing (1) far away from the air inlet pipe (101) is provided with an air outlet pipe (104) for air flow to flow out. The outer part of one end of the air outlet pipe (104) far away from the muffler housing (1) is sleeved with a second connecting plate (105) for connecting with a pipeline. The inner part of the air outlet pipe (104) is sleeved with a second shunt pipe (106) for the dispersed outflow of the air flow after noise reduction is completed. A plurality of groups of holes for air flow to flow out are evenly arranged on the second shunt pipe (106).

Images