Generator set tail gas purifying and silencing device

Abstract

The utility model discloses a tail gas purifying and silencing device for a generator set, and relates to the technical field of tail gas treatment. Comprising a shell, an air inlet pipe is fixedly installed at the position, close to the lower side, of the left side wall of the shell, a bottom cover is installed on the lower surface of the shell through a first locking mechanism, a rotating shaft is fixedly installed on the upper surface of the bottom cover through a bearing, and a cleaning mechanism is arranged on the rotating shaft; a filter screen assembly is fixedly mounted on the lower surface of the inner shell through springs, a silencing mechanism is arranged on the inner wall of the inner shell close to the lower side, and a catalyst assembly and an activated carbon adsorption layer are mounted in the inner shell on the upper surface of the silencing mechanism. The effect of cleaning the filter screen assembly and the inner wall of the shell is improved, flue gas dust is effectively prevented from contaminating the purifying and silencing assembly, the service life is prolonged, the silencing effect is better through the silencing mechanism, and use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas purification and silencing device for a generator set. Background Art

[0002] Diesel generator sets are power equipment that use diesel engines as prime movers to drive synchronous generators to generate electricity. They are power generation devices that start quickly, are easy to operate and maintain, require little investment, and have strong environmental adaptability. A large amount of harmful exhaust gas will be generated during the use of diesel generator sets, so the treatment of exhaust gas is crucial.

[0003] In the prior art, conventional generator set exhaust gas purification and silencing devices lack the function of filtering and cleaning dust in the flue gas during use, resulting in a large amount of dust being contaminated on the purification and silencing components. After long-term use, the purification and silencing effects are greatly reduced, and the silencing components are affected by the size of the structure, resulting in poor silencing effect. Utility Model Content

[0004] The utility model provides a generator set tail gas purification and silencing device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a generator set exhaust gas purification and silencing device, comprising an outer shell, an air intake pipe is fixedly installed on the left side wall of the outer shell near the lower side, a bottom cover is installed on the lower surface of the outer shell through a first locking mechanism, a rotating shaft is fixedly installed on the upper surface of the bottom cover through a bearing, a cleaning mechanism is arranged on the rotating shaft, an inner shell is installed on the side wall of the outer shell near the upper side through a second locking mechanism, a filter screen assembly is fixedly installed on the lower surface of the inner shell through a spring, the lower surface of the filter screen assembly is movably fitted with the upper surface of the cleaning mechanism, a silencing mechanism is arranged on the inner wall of the inner shell near the lower side, a catalyst assembly and an activated carbon adsorption layer are installed in the inner shell on the upper surface of the silencing mechanism, an upper cover is fixedly installed on the upper surface of the inner shell, and an air outlet pipe is arranged on the upper cover.

[0006] Furthermore, the first locking mechanism includes a threaded hole and a locking bolt, and threaded holes are evenly opened at corresponding positions on the side walls of the outer shell and the bottom cover, and locking bolts are installed in the corresponding threaded holes. The outer shell of the locking bolt is locked and fixed to the bottom cover, and the second locking mechanism has the same structure as the first locking mechanism.

[0007] Furthermore, the cleaning mechanism includes a turbine blade, a support rod and a scraper. The turbine blade is fixedly mounted on a rotating shaft corresponding to the air intake pipe. A support rod is fixedly mounted on the rotating shaft near the upper side, and a scraper is mounted on the support rod.

[0008] Furthermore, the scraper is an inverted U-shaped structure, the side surface of the scraper is movably fitted with the inner wall of the shell, and the upper surface of the scraper is movably fitted with the lower surface of the filter assembly.

[0009] Furthermore, the silencer mechanism includes a sealing plate, a partition, a flow channel, an air inlet, a connecting hole, a mesh silencer plate and an air outlet. The inner wall of the inner shell is fixedly installed with sealing plates near the lower edge and the upper position, and four partitions are evenly arranged between the upper and lower sealing plates. The partition divides the inner shell from both sides to the middle into multiple flow channels, and an air inlet is provided on the lower sealing plate corresponding to the outermost flow channel. The flow channels are connected by connecting holes, and a mesh silencer plate is evenly and obliquely installed on the inner wall of the flow channel, and an air outlet is provided in the middle position of the upper sealing plate corresponding to the flow channel.

[0010] Furthermore, the distance between the lower surface of the catalyst assembly and the upper surface of the upper sealing cover is 1.5 cm.

[0011] Compared with the prior art, the utility model provides a generator set exhaust gas purification and silencing device, which has the following beneficial effects:

[0012] 1. The exhaust gas purification and silencing device of the generator set increases the cleaning effect of the filter assembly and the inner wall of the shell by setting a cleaning mechanism to rotate in the shell, so that the dust falls into the bottom cover, effectively preventing the flue gas dust from being contaminated on the purification and silencing components, ensuring the purification and silencing effects and extending the service life.

[0013] 2. The exhaust gas purification and silencing device of the generator set silences the exhaust gas by setting a silencing mechanism, which greatly improves the exhaust gas path and the silencing effect. It is also small in size and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the silencer mechanism of the utility model.

[0017] In the figure: 1. outer shell; 2. air inlet pipe; 3. first locking mechanism; 301. threaded hole; 302. locking bolt; 4. bottom cover; 5. bearing; 6. rotating shaft; 7. cleaning mechanism; 701. turbine blade; 702. support rod; 703. scraper; 8. second locking mechanism; 9. inner shell; 10. spring; 11. filter assembly; 12. silencer mechanism; 121. sealing plate; 122. partition; 123. flow channel; 124. air inlet hole; 125. connecting hole; 126. mesh silencer plate; 127. air outlet hole; 13. catalyst assembly; 14. activated carbon adsorption layer; 15. upper cover; 16. air outlet pipe. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 3 The utility model discloses an exhaust gas purification and silencing device for a generator set, comprising a shell 1, an air intake pipe 2 is fixedly installed on the left side wall of the shell 1 near the lower side, a bottom cover 4 is installed on the lower surface of the shell 1 through a first locking mechanism 3, a rotating shaft 6 is fixedly installed on the upper surface of the bottom cover 4 through a bearing 5, and a cleaning mechanism 7 is arranged on the rotating shaft 6, an inner shell 9 is installed on the side wall of the shell 1 near the upper side through a second locking mechanism 8, a filter screen assembly 11 is fixedly installed on the lower surface of the inner shell 9 through a spring 10, and the lower surface of the filter screen assembly 11 is movably fitted with the upper surface of the cleaning mechanism 7, a silencing mechanism 12 is arranged on the inner wall of the inner shell 9 near the lower side, a catalyst assembly 13 and an activated carbon adsorption layer 14 are installed in the inner shell 9 on the upper surface of the silencing mechanism 12, an upper cover 15 is fixedly installed on the upper surface of the inner shell 9, and an air outlet pipe 16 is arranged on the upper cover 15.

[0020] Specifically, the first locking mechanism 3 includes a threaded hole 301 and a locking bolt 302. The threaded holes 301 are evenly opened at corresponding positions on the side walls of the outer shell 1 and the bottom cover 4, and the corresponding threaded holes 301 are internally threaded with locking bolts 302. The locking bolts 302 lock and fix the outer shell 1 and the bottom cover 4. The second locking mechanism 8 has the same structure as the first locking mechanism 3.

[0021] In this embodiment, the locking bolt 302 is threadedly installed in the threaded hole 301, so that the outer shell 1 and the bottom cover 4 are locked and fixed, and the bottom cover 4 can be disassembled and assembled, which is convenient for cleaning the cleaned dust. The second locking mechanism 8 enables the upper cover 15 to be disassembled and assembled, that is, the inner shell 9 can be disassembled and assembled.

[0022] Specifically, the cleaning mechanism 7 includes a turbine blade 701, a support rod 702 and a scraper 703. The turbine blade 701 is fixedly mounted on the rotating shaft 6 corresponding to the intake pipe 2. The support rod 702 is fixedly mounted on the rotating shaft 6 near the upper side, and the scraper 703 is mounted on the support rod 702.

[0023] In this embodiment, the turbine blades 701 are driven to rotate by the exhaust gas blown into the intake pipe 2, so that the turbine blades 701 drive the rotating shaft 6 to rotate in the bearing 5, and the rotating shaft 6 drives the scraper 703 on the support rod 702 to rotate, and the scraper 703 scrapes off the dust contaminated on the lower inner wall of the outer shell 1 and the lower surface of the filter assembly 11.

[0024] Specifically, the scraper 703 is an inverted U-shaped structure, the side surface of the scraper 703 is movably fitted with the inner wall of the shell 1, and the upper surface of the scraper 703 is movably fitted with the lower surface of the filter assembly 11.

[0025] In this embodiment, the scraper 703 has a thorough cleaning effect on the dust on the inner wall of the housing 1 and the filter assembly 11.

[0026] Specifically, the silencer mechanism 12 includes a sealing plate 121, a partition 122, a flow channel 123, an air inlet 124, a connecting hole 125, a mesh silencer 126 and an air outlet 127. The inner wall of the inner shell 9 is fixedly installed with a sealing plate 121 near the lower edge and the upper position, and four partitions 122 are evenly arranged between the upper and lower sealing plates 121. The partition 122 divides the inner shell 9 from both sides to the middle into multiple flow channels 123, and an air inlet 124 is provided on the lower sealing plate 121 corresponding to the outermost flow channel 123. The flow channels 123 are connected by connecting holes 125. A mesh silencer 126 is evenly and obliquely installed on the inner wall of the flow channel 123, and an air outlet 127 is provided in the middle of the upper sealing plate 121 corresponding to the flow channel 123.

[0027] In this embodiment, the exhaust gas enters the flow channels 123 on both sides through the air inlet 124, and then enters the middle flow channel 123 in sequence through the connecting holes 125. The exhaust gas is silenced by the mesh silencer plate 126, and the exhaust gas is discharged through the air outlet 127.

[0028] Specifically, the distance between the lower surface of the catalyst assembly 13 and the upper surface of the upper sealing cover is 1.5 cm.

[0029] In this embodiment, the exhaust gas can fully contact the catalyst assembly 13 to ensure the purification effect.

[0030] When in use, the exhaust gas generated by the generator set flows into the housing 1 through the intake pipe 2, so that the exhaust gas drives the turbine blades 701 in the cleaning mechanism 7 to rotate due to the exhaust gas blown into the intake pipe 2, so that the turbine blades 701 drive the rotating shaft 6 to rotate in the bearing 5, and the rotating shaft 6 drives the scraper 703 on the support rod 702 to rotate, and the scraper 703 scrapes off the dust on the lower inner wall of the housing 1 and the lower surface of the filter assembly 11, and the filter assembly 11 performs preliminary filtering on the exhaust gas, and the filtered exhaust gas enters through the air inlet hole 124 in the muffler mechanism 12. The exhaust gas enters the flow channels 123 on both sides, and then enters the middle flow channel 123 in turn through the connecting holes 125. The exhaust gas is silenced by the mesh silencer plate 126, and the exhaust gas is discharged through the outlet hole 127. The exhaust gas is then purified by the catalyst component 13 and the activated carbon adsorption layer 14, and the purified exhaust gas is discharged through the outlet pipe 16, which effectively prevents smoke dust from being contaminated on the purification and silencer components, ensures the purification and silencer effects, prolongs the service life, greatly improves the exhaust gas path, improves the silencer effect, and has a small size and is easy to use.

[0031] In summary, the exhaust gas purification and silencing device of the generator set increases the cleaning effect of the filter assembly 11 and the inner wall of the outer shell 1, effectively preventing smoke dust from being contaminated on the purification and silencing components, extending the service life, and the silencing mechanism 12 makes the silencing effect better and is convenient for use.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A generator set exhaust gas purification and silencing device, comprising a housing (1), characterized in that: An air inlet pipe (2) is fixedly mounted on the left side wall of the outer shell (1) near the lower side, a bottom cover (4) is mounted on the lower surface of the outer shell (1) via a first locking mechanism (3), a rotating shaft (6) is fixedly mounted on the upper surface of the bottom cover (4) via a bearing (5), and a cleaning mechanism (7) is arranged on the rotating shaft (6), an inner shell (9) is mounted on the side wall of the outer shell (1) near the upper side via a second locking mechanism (8), a filter assembly (11) is fixedly mounted on the lower surface of the inner shell (9) via a spring (10), the lower surface of the filter assembly (11) is movably fitted with the upper surface of the cleaning mechanism (7), a silencer mechanism (12) is arranged on the inner wall of the inner shell (9) near the lower side, a catalyst assembly (13) and an activated carbon adsorption layer (14) are mounted in the inner shell (9) on the upper surface of the silencer mechanism (12), an upper cover (15) is fixedly mounted on the upper surface of the inner shell (9), and an air outlet pipe (16) is arranged on the upper cover (15).

2. The generator set tail gas purification and silencing device according to claim 1, characterized in that: The first locking mechanism (3) comprises a threaded hole (301) and a locking bolt (302); the threaded holes (301) are evenly formed at corresponding positions on the side walls of the housing (1) and the bottom cover (4); and the locking bolts (302) are installed with internal threads of the corresponding threaded holes (301); the locking bolts (302) lock and fix the housing (1) and the bottom cover (4); and the second locking mechanism (8) has the same structure as the first locking mechanism (3).

3. The generator set tail gas purification and silencing device according to claim 1 is characterized by: The cleaning mechanism (7) comprises a turbine blade (701), a support rod (702) and a scraper (703); the turbine blade (701) is fixedly mounted on a rotating shaft (6) corresponding to the air intake pipe (2); a support rod (702) is fixedly mounted on the rotating shaft (6) near the upper side; and the scraper (703) is mounted on the support rod (702).

4. The generator set tail gas purification and silencing device according to claim 3 is characterized by: The scraper (703) is an inverted U-shaped structure; the side surface of the scraper (703) is movably fitted to the inner wall of the outer shell (1); and the upper surface of the scraper (703) is movably fitted to the lower surface of the filter screen assembly (11).

5. The generator set tail gas purification and silencing device according to claim 1, characterized in that: The silencer mechanism (12) comprises a sealing plate (121), a partition plate (122), a flow channel (123), an air inlet hole (124), a connecting hole (125), a mesh silencer plate (126) and an air outlet hole (127); the sealing plate (121) is fixedly mounted on the inner wall of the inner shell (9) near the lower edge and the upper side, and four partition plates (122) are evenly arranged between the upper and lower sealing plates (121); the partition plates (122) separate the inner shell (9) from both sides. The flow channels (123) are divided into a plurality of flow channels (123) in the middle, and an air inlet hole (124) is provided on the lower sealing plate (121) corresponding to the outermost flow channel (123), the flow channels (123) are connected to each other via a connecting hole (125), a grid sound-absorbing plate (126) is evenly and obliquely installed on the inner wall of the flow channel (123), and an air outlet hole (127) is provided in the middle of the upper sealing plate (121) corresponding to the flow channel (123).

6. The generator set tail gas purification and silencing device according to claim 1, characterized in that: The distance between the lower surface of the catalyst assembly (13) and the upper surface of the upper sealing cover is 1.5 cm.

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