Noise reduction device

Abstract

The utility model relates to the technical field of industrial gas engineering, in particular to a noise reduction device, which realizes a mode of reducing gas flow rate and absorbing noise reduction cotton in a corresponding area, effectively reduces noise, is convenient to replace and overhaul, maintains good performance and improves reliability. Comprising an air inlet pipe and further comprises a guide hopper, a noise reduction cylinder, a bottom frame, a hinge, a cylinder cover, a hose, a fixing piece, a fixing bolt, a screw groove frame, noise reduction cotton and an inner support, the top end of the bottom frame is connected with the left side and the right side of the bottom end of the noise reduction cylinder, and the left end of the noise reduction cylinder communicates with the right side of the air inlet pipe through the guide hopper; the middle of the outer side of the cylinder cover is communicated with the inner side of the hose, the outer end ring side of the cylinder cover is evenly connected with three sets of fixing pieces, the inner side of each set of fixing pieces is movably connected with a set of fixing bolts, the right end ring side of the noise reduction cylinder is evenly connected with three sets of screw groove frames, the noise reduction cotton is detachably installed on the inner side of the noise reduction cylinder, and the inner support is movably arranged on the inner side of the noise reduction cotton.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial gas engineering, in particular to a noise reduction device. Background Art

[0002] In industry, products that are in gaseous form at room temperature and pressure are collectively referred to as industrial gas products. Industrial gas is known as the "blood" of industry. With the rapid development of China's economy, industrial gas, as one of the basic industrial elements of the national economy, has become increasingly important and plays an increasingly prominent role in the national economy.

[0003] In industrial gas engineering, corresponding noise reduction devices are usually used for noise reduction. There is an industrial gas noise reduction treatment device with publication number CN213348164U. After the exhaust gas flows in, the noise generated by the exhaust gas inflow is first reduced by the silencer cotton plate, and then the noise generated by the exhaust gas flow is reduced again by the silencer cotton. The silenced exhaust gas flows into the industrial gas cooling mechanism for secondary noise reduction, thereby minimizing the noise generation.

[0004] However, since the noise reduction of this device is only through the sound-absorbing cotton and the sound-absorbing board, its noise reduction effect is limited and the effect is poor. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a noise reduction device which reduces the gas flow rate and absorbs the sound-absorbing cotton in the corresponding area, effectively reduces the noise, is easy to replace and repair, maintains good performance, and improves reliability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction device, including an air intake pipe, and also including a guide bucket, a noise reduction tube, a base frame, a hinge, a tube cover, a hose, a fixing plate, a fixing bolt, a screw groove frame, a sound-absorbing cotton and an inner bracket. The top of the base frame is connected to the left and right sides of the bottom end of the noise reduction tube, the left end of the noise reduction tube is connected to the right side of the air intake pipe through the guide bucket, the middle part of the front end of the right side of the noise reduction tube is movably connected to the middle part of the rear end of the tube cover through the hinge, the middle part of the outer side of the tube cover is connected to the inner side of the hose, three groups of fixing plates are evenly connected to the ring side of the outer end of the tube cover, and a group of fixing bolts are movably connected to the inner side of each group of fixing plates, three groups of screw groove frames are evenly connected to the ring side of the right end of the noise reduction tube, the sound-absorbing cotton is detachably installed on the inner side of the noise reduction tube, and the inner bracket is movably arranged on the inner side of the sound-absorbing cotton.

[0009] Preferably, it also includes an axle frame, a rotating shaft and a rotating roller. The right side of the base frame is connected to the lower end of the left side of the axle frame. The upper side of the axle frame is rotatably connected to multiple groups of rotating shafts, and the middle of the outer side of each group of rotating shafts is respectively connected to the inner side of a group of rotating rollers.

[0010] Preferably, it further comprises a handle 1, and the upper and lower parts of the right side of the inner bracket are respectively connected to a group of inner ends of the handle 1.

[0011] Preferably, it further comprises a second handle, and the front side of the outer end of the tube cover is connected to the inner end of the second handle.

[0012] Preferably, a sealing ring gasket is further included, and the outer ring side of the inner end of the cylinder cover is connected to the inner end of the sealing ring gasket.

[0013] Preferably, an information board is further included, and the middle portion of the front side of the noise reduction cylinder is connected to the inner side of the information board.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a noise reduction device, which has the following beneficial effects:

[0016] When the cylinder cover is open, first install the silencer cotton on the inside of the noise reduction cylinder, and then install the inner bracket on the inside of the silencer cotton, so that the silencer cotton fits the inner wall of the noise reduction cylinder, and then close the cylinder cover under the constraint of the hinge, so that each set of fixing plates corresponds to the corresponding screw groove frame, and then screw the fixing bolts into the screw groove frame to close and fix the cylinder cover. During the industrial gas transmission process, the gas is diffused from the intake pipe through the guide bucket to the noise reduction cylinder, slowing down the gas flow rate, and further absorbed by the silencer cotton. Air vibration noise, and then further transmitted by the hose, the gas flow rate is reduced and the silencer cotton absorption is achieved in the corresponding area, effectively reducing noise, and facilitating replacement and maintenance, maintaining good performance, and improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axial view of the schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The top view of

[0019] Figure 3 For this utility model Figure 1 Front view of

[0020] Figure 4 For this utility model Figure 1 Right view of .

[0021] Markings in the attached figure: 1. Intake pipe; 2. Guide bucket; 3. Noise reduction cylinder; 4. Base frame; 5. Hinge; 6. Cylinder cover; 7. Hose; 8. Fixing plate; 9. Fixing bolt; 10. Screw groove frame; 11. Silencing cotton; 12. Inner bracket; 13. Axle frame; 14. Rotating shaft; 15. Rotating roller; 16. Handle one; 17. Handle two; 18. Sealing ring gasket; 19. Information plate. DETAILED DESCRIPTION

[0022] 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. Example

[0023] See also Figure 1-4 A noise reduction device includes an air intake pipe 1, a guide bucket 2, a noise reduction tube 3, a base frame 4, a hinge 5, a tube cover 6, a hose 7, a fixing plate 8, a fixing bolt 9, a screw groove frame 10, a silencer 11 and an inner bracket 12. The top of the base frame 4 is connected to the left and right sides of the bottom end of the noise reduction tube 3. The left end of the noise reduction tube 3 is connected to the right side of the air intake pipe 1 through the guide bucket 2. The middle part of the right front end of the noise reduction tube 3 is movably connected to the middle of the rear end of the tube cover 6 through the hinge 5. The middle of the outer side of the tube cover 6 is connected to the inner side of the hose 7. Three groups of fixing plates 8 are evenly connected to the outer end ring side of the tube cover 6. A group of fixing bolts 9 are movably connected to the inner side of each group of fixing plates 8. Three groups of screw groove frames 10 are evenly connected to the right end ring side of the noise reduction tube 3. The silencer The cotton 11 is detachably installed on the inner side of the noise reduction cylinder 3, and the inner bracket 12 is movably arranged on the inner side of the noise reduction cotton 11; when the cylinder cover 6 is opened, the noise reduction cotton 11 is first installed on the inner side of the noise reduction cylinder 3, and then the inner bracket 12 is installed on the inner side of the noise reduction cotton 11, so that the noise reduction cotton 11 fits the inner wall of the noise reduction cylinder 3, and then the cylinder cover 6 is closed under the constraint of the hinge 5, so that each group of fixing plates 8 corresponds to the corresponding screw groove frame 10, and then the fixing bolts 9 are screwed into the screw groove frame 10 to close and fix the cylinder cover 6. During the industrial gas transmission process, the gas is diffused from the air inlet pipe 1 through the guide bucket 2 to the noise reduction cylinder 3, slowing down the gas flow rate, and further absorbing the air vibration noise through the noise reduction cotton 11, and then further transmitted by the hose 7.

[0024] It also includes an axle frame 13, a rotating shaft 14 and a rotating roller 15. The right side of the bottom frame 4 is connected to the lower end of the left side of the axle frame 13. Multiple groups of rotating shafts 14 are rotatably connected to the upper side of the inner part of the axle frame 13. The middle of the outer side of each group of rotating shafts 14 is respectively connected to the inner side of a group of rotating rollers 15. When the silencer cotton 11 and the inner bracket 12 are taken out, they can be rolled and supported and moved by the multiple groups of rotating rollers 15 through the rotating shafts 14 under the constraint of the axle frame 13 to improve stability.

[0025] It also includes a handle 16, and the upper and lower parts of the right side of the inner bracket 12 are respectively connected to the inner ends of a group of handles 16; by holding the two groups of handles 16, it is convenient to connect the inner bracket 12 to move, thereby improving convenience.

[0026] The utility model further comprises a second handle 17, and the front middle side of the outer end of the tube cover 6 is connected to the inner end of the second handle 17; the tube cover 6 can be opened and closed by holding the second handle 17, thereby improving convenience.

[0027] It also includes a sealing ring gasket 18, and the outer ring side of the inner end of the cylinder cover 6 is connected to the inner end of the sealing ring gasket 18; after the cylinder cover 6 is closed, the sealing ring gasket 18 can contact and seal with the right side of the noise reduction cylinder 3 to avoid leakage and improve reliability.

[0028] It also includes an information board 19, and the middle part of the front side of the noise reduction tube 3 is connected to the inner side of the information board 19; the information of the device can be displayed through the information board 19, which is convenient for reading and use, and improves convenience.

[0029] In summary, when a noise reduction device is used, when the tube cover 6 is opened, the silencer cotton 11 is first installed on the inner side of the noise reduction tube 3, and then the inner bracket 12 is installed on the inner side of the silencer cotton 11 by holding the two sets of grips 16, so that the silencer cotton 11 fits the inner wall of the noise reduction tube 3, and then the tube cover 6 is closed under the constraint of the hinge 5 by holding the grip 2 17, so that each set of fixing plates 8 corresponds to the corresponding screw groove frame 10, and then the fixing bolts 9 are screwed into the screw groove frame 10, so that the tube cover 6 is closed and fixed, and the sealing ring gasket 18 can be used to close the tube cover 6. When the cylinder cover 6 is closed, it contacts and seals with the right side of the noise reduction cylinder 3 to avoid leakage. In the process of industrial gas transmission, the gas is diffused from the air inlet pipe 1 through the guide bucket 2 to the noise reduction cylinder 3, slowing down the gas flow rate, and further absorbed by the air vibration noise through the silencer cotton 11, and then further transmitted by the hose 7. When the silencer cotton 11 and the inner bracket 12 are taken out, they can be rolled and supported and moved by multiple groups of rollers 15 through the rotating shaft 14 under the constraint of the shaft frame 13. In addition, the information of the device can be displayed through the information board 19, which is convenient for reading and use, thereby improving convenience.

[0030] 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 noise reduction device, comprising an air intake pipe (1), characterized in that: It also includes a guide bucket (2), a noise reduction tube (3), a base frame (4), a hinge (5), a tube cover (6), a hose (7), a fixing plate (8), a fixing bolt (9), a screw groove frame (10), a silencer (11) and an inner bracket (12), wherein the top of the base frame (4) is connected to the left and right sides of the bottom of the noise reduction tube (3), the left end of the noise reduction tube (3) is connected to the right side of the intake pipe (1) through the guide bucket (2), and the middle part of the front end of the right side of the noise reduction tube (3) is connected to the tube cover through the hinge (5). (6) is movably connected at the middle of the rear end, the middle of the outer side of the tube cover (6) is connected to the inner side of the hose (7), three groups of fixing plates (8) are evenly connected to the outer end ring side of the tube cover (6), and a group of fixing bolts (9) are movably connected to the inner side of each group of fixing plates (8), and three groups of screw groove frames (10) are evenly connected to the right end ring side of the noise reduction tube (3), and the silencer cotton (11) can be detachably installed on the inner side of the noise reduction tube (3), and the inner bracket (12) is movably arranged on the inner side of the silencer cotton (11).

2. A noise reduction device according to claim 1, characterized in that: It also includes an axle frame (13), a rotating shaft (14) and a rotating roller (15), wherein the right side of the base frame (4) is connected to the lower end of the left side of the axle frame (13), and the upper side of the interior of the axle frame (13) is rotatably connected to a plurality of groups of rotating shafts (14), and the middle part of the outer side of each group of rotating shafts (14) is respectively connected to the inner side of a group of rotating rollers (15).

3. A noise reduction device according to claim 1, characterized in that: It also includes a handle 1 (16), and the upper and lower parts of the right side of the inner bracket (12) are respectively connected to a group of inner ends of the handle 1 (16).

4. A noise reduction device according to claim 1, characterized in that: It also includes a second handle (17), and the front side of the outer end of the tube cover (6) is connected to the inner end of the second handle (17).

5. A noise reduction device according to claim 1, characterized in that: It also includes a sealing ring gasket (18), and the outer ring side of the inner end of the cylinder cover (6) is connected to the inner end of the sealing ring gasket (18).

6. A noise reduction device according to claim 1, characterized in that: It also includes an information board (19), and the middle part of the front side of the noise reduction cylinder (3) is connected to the inner side of the information board (19).

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