Tail gas emission silencer for generator set
By designing a generator set exhaust gas emission silence device with multi-stage silencer and automatic cleaning system, the problem of inconvenience of foreign matter falling into and rain-shading devices is solved, and the effect of automatic cleaning and efficient silence is achieved.
Patent Information
- Application Number
- CN202421470601.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-26
AI Technical Summary
External generator set exhaust gas discharge silencer devices are prone to the problem of foreign objects falling in after a long period of use, and the existing rain shielding devices are inconvenient to use, and manual switches are required.
A sound silencer device including a mounting base, multi-stage sound silencer, rain cover, lifting rod and resistive pressure reduction components is designed. Through the cooperation of the inverted conical block and arc plate, automatic cleaning of foreign matter and effective airflow discharge are achieved. .
The device can automatically clean up fallen foreign objects, which is easy to use and does not require manual participation, improves the silence effect and reduces exhaust resistance, avoiding the impact on engine power consumption.
Smart Images
Figure CN222436452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silencing, in particular to an exhaust emission silencing device for a generator set. Background Art
[0002] Existing silencers are used in generator sets to reduce exhaust emissions during generator set operation. Silencers are devices that prevent sound transmission and allow airflow to pass through. They are important measures to eliminate aerodynamic noise. Silencers are noise-reducing devices installed on the airflow channel of aerodynamic equipment (such as blowers, air compressors, boiler exhaust ports, generators, water pumps and other equipment with high exhaust noise) or in the intake and exhaust systems.
[0003] The top of the existing silencer is generally directly exposed to the outside, and a rain shielding component is usually installed on the top of the silencer. Commonly, a rain shield is installed on the top of the silencer, which can effectively shield the rain on rainy days, but there is still a large gap between the silencer and the rain shield, which may cause some foreign objects to fall into the silencer after a long time. Some other methods may install a rain shield that can be opened and closed manually on the top of the silencer. The rain shield can be opened when working, and can also shield the rain on rainy days. The rain shield can be closed when not in use to prevent foreign objects from falling into the silencer. However, the device needs to be manually opened and closed each time it is used, and needs to be manually closed when not in use, which is not convenient to use.
[0004] Therefore, a tail gas emission silencing device for a generator set is specially proposed. Summary of the invention
[0005] In view of the shortcomings of the prior art, the utility model provides an exhaust emission silencer for a generator set, which has the advantages of being easy to use, requiring no manual intervention, and being able to automatically clean up foreign objects that fall into the silencer. It solves the problem that foreign objects may fall into the existing silencer after long-term use and the problem that the existing rainproof device is inconvenient to use.
[0006] To achieve the above object, the utility model provides the following technical solutions: an exhaust emission silencer for a generator set, comprising a mounting seat, a first-stage silencer is fixedly mounted on the top of the mounting seat, a second-stage silencer is fixedly mounted on the top of the first-stage silencer, a third-stage silencer is fixedly mounted on the top of the second-stage silencer, and a rainproof cover is fixedly mounted on the top of the third-stage silencer;
[0007] A lifting rod is fixedly installed inside the three-stage silencer, and an object-blocking and pressure-reducing component is arranged inside the three-stage silencer. The object-blocking and pressure-reducing component includes an inverted conical block, which is movably sleeved on the lifting rod inside the three-stage silencer, and a lifting groove is opened inside the inverted conical block.
[0008] Preferably, a discharge air outlet ring groove communicating with the interior is opened at the side end of the three-stage silencer, the top end of the lifting rod is fixed to the rain cover, a fixing rod is fixedly installed between the bottom end of the lifting rod and the inner wall of the three-stage silencer, and the bottom end of the lifting rod is fixed by the fixing rod.
[0009] Preferably, a connecting seat is fixedly installed on the top of the inverted cone block, a first row of arc plates is movably installed on the front end of the connecting seat, a second row of arc plates is movably installed on the left side of the connecting seat, a third row of arc plates is movably installed on the rear end of the connecting seat, and a fourth row of arc plates is movably installed on the right side of the connecting seat, and shafts are arranged between the first row of arc plates, the second row of arc plates, the third row of arc plates, and the fourth row of arc plates and the connecting seat.
[0010] Preferably, the first row of arc plates, the second row of arc plates, the third row of arc plates and the fourth row of arc plates move upward and merge into a funnel shape, and after the first row of arc plates, the second row of arc plates, the third row of arc plates and the fourth row of arc plates move downward and open, there are gaps between each group of arc plates.
[0011] Preferably, when the inverted cone block rises to the top of the lifting rod, the first row of arc plates, the second row of arc plates, the third row of arc plates and the fourth row of arc plates can be inserted into the discharge air outlet ring groove and tilted downward.
[0012] Preferably, first baffles are fixedly installed on the left and right ends of the inner walls of the first row of arc plates and the third row of arc plates, and second baffles are fixedly installed on the front and rear ends of the inner walls of the second row of arc plates and the fourth row of arc plates.
[0013] Preferably, a second air guide groove is provided on the surface of the inverted cone block, and a first air guide groove is provided on the surfaces of the first row of arc plates, the second row of arc plates, the third row of arc plates and the fourth row of arc plates.
[0014] Preferably, four groups of second air guide grooves are provided on the surface of the inverted cone block, and each group of the second air guide grooves faces the gaps after the first row of arc plates, the second row of arc plates, the third row of arc plates and the fourth row of arc plates are opened.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The exhaust emission silencer for a generator set is easy to use and does not require manual intervention. It can automatically clean foreign objects that fall into the silencer by installing three-stage silencers, exhaust outlet ring grooves, lifting rods, inverted cone blocks, first row arc plates, second row arc plates, third row arc plates, fourth row arc plates, first baffles and other devices.
[0017] 2. The exhaust gas silencing device for the generator set can assist the discharge of airflow through the inverted cone block and the first row of arc plates, the second row of arc plates, the third row of arc plates, and the fourth row of arc plates, thereby reducing the exhaust resistance and improving the silencing effect. At the same time, it can also avoid the problem of engine power consumption affected by excessive exhaust resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic diagram of the overall structure of the silencer device of the utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the utility model's barrier and pressure reduction component when opened in a plane;
[0021] Figure 3 This is a schematic diagram of the structure of the utility model in which the object-blocking and pressure-reducing component is located inside the third-stage silencer;
[0022] Figure 4 This is a schematic diagram of the overall structure of the barrier and pressure reduction component of the utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the object-blocking and pressure-reducing component of the utility model.
[0024] Description of reference numerals:
[0025] 1. Mounting seat; 2. First-stage silencer; 3. Second-stage silencer; 4. Third-stage silencer; 41. Exhaust air outlet ring groove; 42. Lifting rod; 43. Fixing rod; 5. Barrier and pressure-reducing component; 51. Inverted cone block; 52. Lifting groove; 53. Connecting seat; 54. First row arc plate; 55. Second row arc plate; 56. Third row arc plate; 57. Fourth row arc plate; 58. Shaft; 59. First baffle; 510. Second baffle; 511. First air guide slot; 512. Second air guide slot; 6. Rain cover. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figures 1 to 5 , the utility model provides a technical solution:
[0028] An exhaust emission silencer for a generator set, comprising a mounting seat 1, a primary silencer 2 is fixedly mounted on the top of the mounting seat 1, a secondary silencer 3 is fixedly mounted on the top of the primary silencer 2, a tertiary silencer 4 is fixedly mounted on the top of the secondary silencer 3, a rain cover 6 is fixedly mounted on the top of the tertiary silencer 4, a lifting rod 42 is fixedly mounted inside the tertiary silencer 4, a material-blocking and pressure-reducing component 5 is arranged inside the tertiary silencer 4, the material-blocking and pressure-reducing component 5 comprises an inverted conical block 51, the inverted conical block 51 is movably sleeved on the lifting rod 42 inside the tertiary silencer 4, and a lifting groove 52 is provided inside the inverted conical block 51;
[0029] The side end of the three-stage silencer 4 is provided with a discharge air outlet ring groove 41 communicated with the interior, the top end of the lifting rod 42 is fixed to the rain cover 6, a fixing rod 43 is fixedly installed between the bottom end of the lifting rod 42 and the inner wall of the three-stage silencer 4, the bottom end of the lifting rod 42 is fixed by the fixing rod 43, a connecting seat 53 is fixedly installed on the top of the inverted cone block 51, a first discharge arc plate 54 is movably installed at the front end of the connecting seat 53, a second discharge arc plate 55 is movably installed on the left side of the connecting seat 53, a third discharge arc plate 56 is movably installed at the rear end of the connecting seat 53, and a fourth discharge arc plate 57 is movably installed on the right side of the connecting seat 53, and shafts are arranged between the first discharge arc plate 54, the second discharge arc plate 55, the third discharge arc plate 56 and the fourth discharge arc plate 57 and the connecting seat 53 58. The first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 move upward and merge into a funnel shape. After the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 move downward and open, there is a gap between each group of arc plates. When the inverted cone block 51 rises to the top of the lifting rod 42, the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 can be inserted into the discharge air outlet ring groove 41 and tilted downward. The first row of arc plates 54 and the third row of arc plates 56 are fixedly installed with first baffles 59 on both ends of the inner wall, and the second row of arc plates 55 and the fourth row of arc plates 57 are fixedly installed with second baffles 510 on both ends of the inner wall.
[0030] By adopting the above technical scheme, when the silencer is in use, the object-blocking and pressure-reducing component 5 in the three-stage silencer 4 is located at the bottom position inside the three-stage silencer 4, and the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are in a combined state, similar to a funnel shape, and the purpose of shielding foreign matter is achieved by the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 to prevent foreign matter from falling into the silencer. When the silencer is in use, the airflow of exhaust gas emissions can lift the object-blocking and pressure-reducing component 5, and the object-blocking and pressure-reducing component 5 rises through the lifting rod 42, and the inverted cone block 51 is lifted up by the airflow generated by the exhaust gas emissions. During the rising process of the inverted cone block 51, the first row of arc plates The plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are still in a funnel shape to prevent foreign objects blocked in the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 from falling down. When the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 rise to the discharge air outlet ring groove 41, the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 will naturally open outwards due to the lack of objects that hinder their diffusion. The first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are tilted outwards and inserted into the discharge air outlet ring groove 41;
[0031] At this time, the exhaust emission has not stopped, and the inverted cone block 51 will continue to rise until it moves to the point where the inverted cone block 51 can no longer rise due to the change in the thickness of the lifting rod 42, and stops moving. The diameters of the two ends of the lifting rod 42 are larger than the diameter of the middle part, and the diameter of the middle part of the lifting rod 42 is smaller than the diameter of the lifting groove 52. Therefore, the inverted cone block 51 can only move in the middle of the lifting rod 42. When the inverted cone block 51 rises to the top, the connecting seat 53 is convex, and the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are inserted into the exhaust gas ring groove 41 and are tilted downward. At this time, the foreign matter collected by the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 The foreign matter will be discharged into the three-stage silencer 4 through the exhaust air outlet ring groove 41. At the same time, the first row arc plate 54, the third row arc plate 56, the second row arc plate 55, and the fourth row arc plate 57 are respectively installed with the first baffle 59 and the second baffle 510 on the inner wall sides. This makes it possible for the first row arc plate 54, the second row arc plate 55, the third row arc plate 56 and the fourth row arc plate 57 to not directly contact the exhaust air outlet ring groove 41 when inserted into the exhaust air outlet ring groove 41. The first baffle 59 and the second baffle 510 provide a certain gap between them and the exhaust air outlet ring groove 41, which facilitates the discharge of foreign matter. When the silencer stops discharging exhaust gas, the airflow decreases, and the object blocking and pressure reducing component 5 lacks power and can fall back into the three-stage silencer 4.
[0032] Specifically, Figures 2 to 5 As shown, the surface of the inverted conical block 51 is provided with a second air guide groove 512, and the surfaces of the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are all provided with a first air guide groove 511. A total of four groups of second air guide grooves 512 are provided on the surface of the inverted conical block 51, and each group of the second air guide grooves 512 is directly opposite to the gaps after the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are opened.
[0033] By adopting the above technical solution, when the barrier and pressure reduction component 5 is pushed to the top by the airflow, the inverted cone block 51 and the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56, and the fourth row of arc plates 57 can assist the discharge of the airflow, thereby reducing the exhaust resistance, improving the silencing effect, and avoiding the problem of engine power consumption affected by excessive exhaust resistance. During the exhaust process, the exhaust can be exhausted not only through the outlet between the top of the third-stage silencer 4 and the rainproof cover 6, but also through the exhaust air outlet ring groove 41. When the barrier and pressure reduction component 5 rises to the top, the first row of arc plates 54, the second row of arc plates 55, the third row of arc plates 56 and the fourth row of arc plates 57 are located in the exhaust air outlet ring groove 41, and the first row of arc plates 5 4. The surfaces of the second row arc plate 55, the third row arc plate 56 and the fourth row arc plate 57 are provided with first air guide grooves 511. At this time, the first air guide grooves 511 can play a role of guiding air, guiding the airflow to be discharged through the discharge air outlet ring groove 41, and the surface of the inverted cone block 51 is provided with second air guide grooves 512. There are four groups of second air guide grooves 512. Each group of second air guide grooves 512 faces the gap between the opened arc plates, and can play a role of guiding the airflow to flow upward through the gap between the arc plates. Through the above design, the outlet is increased, and the first row arc plate 54, the second row arc plate 55, the third row arc plate 56, the fourth row arc plate 57 and the inverted cone block 51 are used for drainage, so that the exhaust resistance of the device is small.
[0034] Working principle: Assemble the device through the mounting base 1. When working, the exhaust gas discharged will be discharged through the first-level silencer 2, the second-level silencer 3, and the third-level silencer 4, so as to achieve the purpose of silence. When the exhaust gas is discharged, the airflow flows upward through the first-level silencer 2, the second-level silencer 3, and the third-level silencer 4. When the airflow flows into the third-level silencer 4, the barrier pressure reduction component 5 will be pushed upward. When the inverted cone block 51 moves to the top due to the airflow, the first row arc plate 54, the second row arc plate 55, the third row arc plate 56 and the fourth row arc plate 57 are in the discharge air outlet ring groove 41, and the collected foreign matter can be discharged through the discharge air outlet ring groove 41. At the same time, the first row arc plate 54, the second row arc plate 55, the third row arc plate 56 and the fourth row arc plate 57 are in the discharge air outlet ring groove 41. The surfaces of 55, the third row arc plate 56, the fourth row arc plate 57 and the inverted cone block 51 are respectively provided with a first air guide groove 511 and a second air guide groove 512, which can divert the airflow so that the airflow is discharged through the exhaust air outlet ring groove 41 and the outlet on the top of the third-stage silencer 4 respectively. The increase in the exhaust port reduces the exhaust resistance during exhaust gas discharge, thereby avoiding the problem of affecting the engine power consumption. When the discharge stops, the object-blocking and pressure-reducing component 5 will be poured back into the third-stage silencer 4 due to the actual power. At this time, the first row arc plate 54, the second row arc plate 55, the third row arc plate 56 and the fourth row arc plate 57 are in a retracted state, similar to a bucket shape, which can collect foreign matter and prevent foreign matter from falling into the inside of the device.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. An exhaust gas emission silencing device for a generator set, comprising a mounting base (1), characterized in that: A primary silencer (2) is fixedly mounted on the top of the mounting seat (1), a secondary silencer (3) is fixedly mounted on the top of the primary silencer (2), a tertiary silencer (4) is fixedly mounted on the top of the secondary silencer (3), and a rainproof cover (6) is fixedly mounted on the top of the tertiary silencer (4); A lifting rod (42) is fixedly installed inside the three-stage silencer (4), and a material-blocking and pressure-reducing component (5) is arranged inside the three-stage silencer (4). The material-blocking and pressure-reducing component (5) comprises an inverted conical block (51), and the inverted conical block (51) is movably sleeved on the lifting rod (42) inside the three-stage silencer (4), and a lifting groove (52) is provided inside the inverted conical block (51).
2. The exhaust gas silencing device for a generator set according to claim 1, characterized in that: The side end of the three-stage silencer (4) is provided with a discharge air outlet ring groove (41) which is in communication with the interior; the top end of the lifting rod (42) is fixed to the rain cover (6); a fixing rod (43) is fixedly installed between the bottom end of the lifting rod (42) and the inner wall of the three-stage silencer (4); and the bottom end of the lifting rod (42) is fixed by the fixing rod (43).
3. The exhaust emission silencing device for a generator set according to claim 1, characterized in that: A connecting seat (53) is fixedly mounted on the top of the inverted cone block (51); a first row of arc plates (54) is movably mounted on the front end of the connecting seat (53); a second row of arc plates (55) is movably mounted on the left side of the connecting seat (53); a third row of arc plates (56) is movably mounted on the rear end of the connecting seat (53); a fourth row of arc plates (57) is movably mounted on the right side of the connecting seat (53); and shafts (58) are provided between the first row of arc plates (54), the second row of arc plates (55), the third row of arc plates (56), and the fourth row of arc plates (57) and the connecting seat (53).
4. The exhaust emission silencing device for a generator set according to claim 3, characterized in that: The first row of arc plates (54), the second row of arc plates (55), the third row of arc plates (56) and the fourth row of arc plates (57) move upward and merge to form a funnel shape; and the first row of arc plates (54), the second row of arc plates (55), the third row of arc plates (56) and the fourth row of arc plates (57) move downward and open, and there is a gap between each group of arc plates.
5. The exhaust emission silencing device for a generator set according to claim 3, characterized in that: When the inverted cone block (51) rises to the top of the lifting rod (42), the first row of arc plates (54), the second row of arc plates (55), the third row of arc plates (56) and the fourth row of arc plates (57) can be inserted into the discharge air outlet ring groove (41) and tilted downward.
6. The exhaust emission silencing device for a generator set according to claim 3, characterized in that: First baffles (59) are fixedly mounted on both left and right ends of the inner walls of the first row of arc plates (54) and the third row of arc plates (56), and second baffles (510) are fixedly mounted on both front and rear ends of the inner walls of the second row of arc plates (55) and the fourth row of arc plates (57).
7. The exhaust emission silencing device for a generator set according to claim 3, characterized in that: The surface of the inverted cone block (51) is provided with a second air guide groove (512), and the surfaces of the first row of arc plates (54), the second row of arc plates (55), the third row of arc plates (56) and the fourth row of arc plates (57) are all provided with a first air guide groove (511).
8. The exhaust emission silencing device for a generator set according to claim 7, characterized in that: A total of four groups of second air guide grooves (512) are provided on the surface of the inverted cone block (51), and each group of the second air guide grooves (512) is directly opposite to the gaps opened by the first row of arc plates (54), the second row of arc plates (55), the third row of arc plates (56), and the fourth row of arc plates (57).